Flash plugin not working 11.04

Can you give the output of:

lsb_release -a; uname -a; dpkg -l | egrep 'flash|gnash|swf|spark'

Thanks

Thank you so very much for your response, I have been working on this for days!

No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 11.10
Release: 11.10
Codename: oneiric
Linux mike-desktop 3.0.0-17-generic #30-Ubuntu SMP Thu Mar 8 17:34:21 UTC 2012 i686 athlon i386 GNU/Linux
rc browser-plugin-gnash 0.8.10~git20110618-3ubuntu1 GNU Shockwave Flash (SWF) player - Plugin for Mozilla and derivatives
ii flashplugin-installer 11.2.202.233ubuntu0.11.10.3 Adobe Flash Player plugin installer
rc gnash 0.8.10~git20110618-3ubuntu1 GNU Shockwave Flash (SWF) player
rc gnash-common 0.8.10~git20110618-3ubuntu1 GNU Shockwave Flash (SWF) player - Common files/libraries
mike@mike-desktop:~$

sudo dpkg -P browser-plugin-gnash gnash gnash-common

sudo apt-get --purge remove flashplugin-installer

sudo apt-get --purge autoremove

sudo apt-get install adobe-flashplugin

I followed your instructions, and still have the same issue. when I go to hulu, i just get a black screen. When I try to login to my office computer using logmein.com I just get a black screen. When I go to youtube, audio and video will play in small screen version only, if I go to large screen, audio is ok, but video is very choppy. Any other suggestios?

here is the ouput again

No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 11.10
Release: 11.10
Codename: oneiric
Linux mike-desktop 3.0.0-17-generic #30-Ubuntu SMP Thu Mar 8 17:34:21 UTC 2012 i686 athlon i386 GNU/Linux
ii adobe-flash-properties-gtk 11.2.202.233-0oneiric1 GTK+ control panel for Adobe Flash Player plugin version 11
ii adobe-flashplugin 11.2.202.233-0oneiric1 Adobe Flash Player plugin version 1

'sudo apt-get install --reinstall flashplugin-nonfree'

The output of that command is -

Reading package lists... Done
Building dependency tree
Reading state information... Done
Package flashplugin-nonfree is a virtual package provided by:
  adobe-flashplugin 11.2.202.233-0oneiric1
  flashplugin-installer 11.2.202.233ubuntu0.11.10.3
You should explicitly select one to install.

E: Package 'flashplugin-nonfree' has no installation candidate

Still experiencing the same issues

I attempted to install flashaid, but it didn't fix the problem. Flashaid just attempted to reinstall the same broken 11.2.202.233 version of the plugin.

I finally resolved the problem by manually installing the adobe-flashplugin_11.1.102.62-0lucid1_i386.deb package.

Hopefully this can get fixed without having to downgrade the flash plugin.