Cannot see HPLIP Toolbox

Hi, I can view the toolbox on my wife's account (Linux Mint 17.3) but I cannot view it on mine.
Any ideas please?

Saving output in log file: /home/mick/hp-check.log

HP Linux Imaging and Printing System (ver. 3.15.2)
Dependency/Version Check Utility ver. 15.1

Copyright (c) 2001-15 Hewlett-Packard Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.

Note: hp-check can be run in three modes:
1. Compile-time check mode (-c or --compile): Use this mode before compiling the
HPLIP supplied tarball (.tar.gz or .run) to determine if the proper dependencies
are installed to successfully compile HPLIP.
2. Run-time check mode (-r or --run): Use this mode to determine if a distro
supplied package (.deb, .rpm, etc) or an already built HPLIP supplied tarball
has the proper dependencies installed to successfully run.
3. Both compile- and run-time check mode (-b or --both) (Default): This mode
will check both of the above cases (both compile- and run-time dependencies).

Check types:
a. EXTERNALDEP - External Dependencies
b. GENERALDEP - General Dependencies (required both at compile and run time)
c. COMPILEDEP - Compile time Dependencies
d. [All are run-time checks]
PYEXT SCANCONF QUEUES PERMISSION

Status Types:
    OK
    MISSING - Missing Dependency or Permission or Plug-in
    INCOMPAT - Incompatible dependency-version or Plugin-version

warning: linuxmint-17.3 version is not supported. Using linuxmint-17 versions dependencies to verify and install...

---------------
| SYSTEM INFO |
---------------

 Kernel: 3.19.0-32-generic #37~14.04.1-Ubuntu SMP Thu Oct 22 09:41:40 UTC 2015 GNU/Linux
 Host: Murnablast
 Proc: 3.19.0-32-generic #37~14.04.1-Ubuntu SMP Thu Oct 22 09:41:40 UTC 2015 GNU/Linux
 Distribution: linuxmint 17.3
 Bitness: 64 bit

-----------------------
| HPLIP CONFIGURATION |
-----------------------

HPLIP-Version: HPLIP 3.15.2
HPLIP-Home: /usr/share/hplip
warning: HPLIP-Installation: Auto installation is not supported for linuxmint distro 17.3 version

Current contents of '/etc/hp/hplip.conf' file:
# hplip.conf. Generated from hplip.conf.in by configure.

[hplip]
version=3.15.2

[dirs]
home=/usr/share/hplip
run=/var/run
ppd=/usr/share/ppd/hplip/HP
ppdbase=/usr/share/ppd/hplip
doc=/usr/share/doc/hplip-doc/HTML
html=/usr/share/doc/hplip-3.15.2
icon=no
cupsbackend=/usr/lib/cups/backend
cupsfilter=/usr/lib/cups/filter
drv=/usr/share/cups/drv
bin=/usr/bin

# Following values are determined at configure time and cannot be changed.
[configure]
network-build=yes
libusb01-build=no
pp-build=yes
gui-build=yes
scanner-build=yes
fax-build=yes
dbus-build=yes
cups11-build=no
doc-build=yes
shadow-build=no
hpijs-install=yes
foomatic-drv-install=yes
foomatic-ppd-install=yes
foomatic-rip-hplip-install=no
hpcups-install=yes
cups-drv-install=yes
cups-ppd-install=no
internal-tag=3.15.2
restricted-build=no
ui-toolkit=qt4
qt3=no
qt4=yes
policy-kit=yes
lite-build=no
udev_sysfs_rules=no
hpcups-only-build=no
hpijs-only-build=no

Current contents of '/var/lib/hp/hplip.state' file:
Plugins are not installed. Could not access file: No such file or directory

Current contents of '~/.hplip/hplip.conf' file:
[last_used]
device_uri = "hp:/net/ENVY_5640_series?zc=HPFC3FDB6236D8"
printer_name =
working_dir = .

[settings]
systray_visible = 1
systray_messages = 0

[commands]
scan = /usr/bin/simple-scan %SANE_URI%

[refresh]
rate = 30
enable = false
type = 1

[polling]
enable = false
interval = 5
device_list =

[fax]
voice_phone =
email_address =

[upgrade]
notify_upgrade = true
last_upgraded_time = 1463063652
pending_upgrade_time = 0

[installation]
date_time = 08/15/16 11:20:40
version = 3.15.2

 <Package-name> <Package-Desc> <Required/Optional> <Min-Version> <Installed-Version> <Status> <Comment>

--------------------------
| External Dependencies |
--------------------------

 avahi-utils avahi-utils OPTIONAL - 0.6.31 OK -
 policykit PolicyKit - Administrative policy framework OPTIONAL - 0.105 OK -
 xsane xsane - Graphical scanner frontend for SANE OPTIONAL 0.9 0.998 OK -
 scanimage scanimage - Shell scanning program OPTIONAL 1.0 1.0.23 OK -
 dbus DBus - Message bus system REQUIRED - 1.6.18 OK -
 gs GhostScript - PostScript and PDF language interpreter and previewer REQUIRED 7.05 9.10 OK -
 cups CUPS - Common Unix Printing System REQUIRED 1.1 1.7.2 OK 'CUPS Scheduler is running'
 network network -wget OPTIONAL - 1.15 OK -

-------------------------
| General Dependencies |
-------------------------

 cups-image CUPS image - CUPS image development files REQUIRED - 1.7.2 OK -
 libpthread libpthread - POSIX threads library REQUIRED - b'2.19' OK -
 libjpeg libjpeg - JPEG library REQUIRED - - OK -
 python3-pyqt4 PyQt 4- Qt interface for Python (for Qt version 4.x) REQUIRED 4.0 4.10.4 OK -
 python3X Python 2.2 or greater - Python programming language REQUIRED 2.2 2.7.6 OK -
 python3-xml Python XML libraries REQUIRED - 2.1.0 OK -
 python3-pil PIL - Python Imaging Library (required for commandline scanning with hp-scan) OPTIONAL - 1.1.7 OK -
 sane-devel SANE - Scanning library development files REQUIRED - 1.0.23 OK -
 cups-devel CUPS devel- Common Unix Printing System development files REQUIRED - 1.7.2 OK -
 python3-devel Python devel - Python development files REQUIRED 2.2 2.7.6 OK -
 sane SANE - Scanning library REQUIRED - 1.0.23 OK -
 libusb libusb - USB library REQUIRED - 1.0 OK -
 libnetsnmp-devel libnetsnmp-devel - SNMP networking library development files REQUIRED 5.0.9 5.7.2 OK -
 python3-pyqt4-dbus PyQt 4 DBus - DBus Support for PyQt4 OPTIONAL 4.0 4.10.4 OK -
 python3-dbus Python DBus - Python bindings for DBus REQUIRED 0.80.0 1.2.0 OK -
 libcrypto libcrypto - OpenSSL cryptographic library REQUIRED - 1.0.1 OK -
 python3-reportlab Reportlab - PDF library for Python OPTIONAL 2.0 3.0 OK -
 python3-notify2 Python libnotify - Python bindings for the libnotify Desktop notifications OPTIONAL - - OK -

---------------
| COMPILEDEP |
---------------

 make make - GNU make utility to maintain groups of programs REQUIRED 3.0 3.81 OK -
 gcc gcc - GNU Project C and C++ Compiler REQUIRED - 4.8.4 OK -
 libtool libtool - Library building support services REQUIRED - 2.4.2 OK -

----------------------
| Python Extentions |
----------------------

 hpmudext IO-Extension REQUIRED - 3.15.2 OK -
 cupsext CUPS-Extension REQUIRED - 3.15.2 OK -

-----------------------
| Scan Configuration |
-----------------------

 scanext Scan-SANE-Extension REQUIRED - 3.15.2 OK -
'/etc/sane.d/dll.d/hpaio' not found.
 hpaio HPLIP-SANE-Backend REQUIRED - 3.15.2 OK 'hpaio found in /etc/sane.d/dll.conf'

-----------------------
| Other Dependencies |
-----------------------

------------------------------
| DISCOVERED SCANNER DEVICES |
------------------------------

device `hpaio:/net/ENVY_5640_series?zc=HPFC3FDB6236D8' is a Hewlett-Packard ENVY_5640_series all-in-one

--------------------------
| DISCOVERED USB DEVICES |
--------------------------

No devices found.

---------------------------------
| INSTALLED CUPS PRINTER QUEUES |
---------------------------------

HP-ENVY-5640-series
-------------------
Type: Printer
Device URI: hp:/net/ENVY_5640_series?zc=HPFC3FDB6236D8
PPD: /etc/cups/ppd/HP-ENVY-5640-series.ppd
PPD Description: HP Envy 5640 Series, hpcups 3.15.2
Printer status: printer HP-ENVY-5640-series is idle. enabled since Mon 15 Aug 2016 10:5ready to print
Communication status: Good

--------------
| PERMISSION |
--------------

No errors or warnings.

Done.