virtualbox dont recognise usb

Did you MD5 test the ISO / IMG file you put on the USB?

how do you do that?

http://releases.ubuntu.com/10.04/MD5SUMS

and what does that do?

i think i had that happen to me with juanty im not being a wise guy but with me it was a error creating the usb i was using ubootin or what ever it is on widowz machine to create the usb image. i ended up going to a linux machine to make the usb image.

The MD5 makes a checksum to verify that contents of CD or USB key is what expected.
Sometimes, there are copy error from a Web site to the ultimate physical support.

I have some difficulties to understand your post. What do you want to do ?

i want to try Ubuntu and if I like it install it to one of my hard drive partitions

i went to download. searched md5 and found a program ran it the codes dont match on my first download but they do on my torrent

Then use the torrent. the file you downloaded not using torrents has been damaged in transmission and is worthless.

i tried the torrent didnt work
 when i ran it in virtual box it asked for a language i selected english and hit enter
 it asked to install ubuntu i hit enter
 it brought up the command line thingy and nothing happened(i also could not type into it)
when i ran it from a flash drive i go the same results as the regular download

i tried the torrent didnt work
 when i ran it in virtual box it asked for a language i selected english and hit enter
 it asked to install ubuntu i hit enter
 it brought up the command line thingy and nothing happened(i also could not type into it)
when i ran it from a flash drive i go the same results as the regular download

i tried the torrent didnt work
 when i ran it in virtual box it asked for a language i selected english and hit enter
 it asked to install ubuntu i hit enter
 it brought up the command line thingy and nothing happened(i also could not type into it)
when i ran it from a flash drive i go the same results as the regular download

how do i unsolve? i accidentaly hit this solved my problem instead of add comment? and i accidentaly added it 3 times

Here some general note and howto:

The main ubuntu site is this: www.ubuntu.com and the download location is this
http://www.ubuntu.com/desktop/get-ubuntu/download

Prerequisites: https://help.ubuntu.com/community/Installation/SystemRequirements
Please also be sure to read the release notes: https://wiki.ubuntu.com/LucidLynx/ReleaseNotes

1) please download the 700 mb file http://www.ubuntu.com/desktop/get-ubuntu/download simply press on download button
To avoid download errors please prefer to download the desired ubuntu iso install cd image using the torrent protocol.
2) check the md5sum of downloaded file to be sure it have no error https://help.ubuntu.com/community/HowToMD5SUM

Only if the md5sum number match with this: http://releases.ubuntu.com/10.04/MD5SUMS go to the next steps otherwise
install a torrent client i suggest you http://deluge-torrent.org/ if you are using Windows and download the iso using a .torrent link from here:
http://releases.ubuntu.com/10.04/ubuntu-10.04-desktop-i386.iso.torrent

3) burn the iso image onto a cd, to do it install and use http://infrarecorder.org/?page_id=5
4) insert the self made install cd into your pc cdrom drive and reboot your pc. You must not see Windows starting and you can try Ubuntu from cdrom and then install it

If you have trouble with installation (the system freeze or you can't complete it) be sure to read the above suggestions, then:

1.a ) Please boot entirely (you must not see windows starting) from Ubuntu live install cd and when the system start to boot from cd you will see two bottom screen icons (keyboard and man inside circle ) please press space (choose your desired language) then a screen textual center menu will appear to you with this items in it:

Try Ubuntu without installing
Install Ubuntu
Check disc for defects
Test memory
Boot from first hard disk

Please select "Check disc for defects" and press enter to test if your cd-driver can read in a good way the live install cd... or if the install cd have some defective file in it.
Then please also perform a Test memory to be sure your pc RAM memory have not any issue

http://www.ubuntugeek.com/how-to-fix-ubuntu-10-04-lts-lucid-blank-screen-at-startup.html

---- Trouble with intel8xxx graphic cards:

please try this: https://wiki.ubuntu.com/X/Bugs/Lucidi8xxFreezes

you said
"Try Ubuntu without installing
Install Ubuntu
Check disc for defects
Test memory
Boot from first hard disk"
try ubuntu wasnt there (i burned it to a disk it seems to be working a little better it let me start install ing but i dont want to do it yet incase i dont like it)

From http://www.ubuntu.com/desktop/get-ubuntu/download

i mean this:
http://www.ubuntu.com/sites/default/files/active/03_global/09_instructions/trial_01_medium.jpg

no it didnt look like that

I have difficulties to understa

<email address hidden>

I have difficulties to understand your problem.
Can you try to install under VirtualBox, and then take a picture (via a screen copy or with a camera) of when it fails.
And then send it by e-mail to this address:
    <email address hidden>
I suspect you misunderstood something in installation process.

all it is is the black screen with blinkink white underscore (like in DOS) but i can ttype anything and it never loads

http://www.ubuntugeek.com/how-to-fix-ubuntu-10-04-lts-lucid-blank-screen-at-startup.html