how can i use more than one mouse on ubuntu

gksudo gedit /etc/X11/xorg.conf

By adding a line like:

    Option "Resolution" "500"

in section:

    Section "InputDevice" Identifier "Mouse0"

This may help too:

http://www.x.org/wiki/Development/Documentation/PointerAcceleration

You will need to add different accellerations for each mouse device in xorg.conf

thanks for the reply ,affraid i havent learnt enough to realy no what i should do , i have been using ubuntu for a while now and i am learning slowly but its hard going, i am determined not to go back to windows as i just cannot cope with it after using ubuntu.
could someone give me some more help please , i need step by step instructions please. i really do need to get this other trackball set up as my hands are getting worse, i need to use booth hands or give one a rest for a while before going back to the other one. i would be very grateful for any help given

Ok, i'll try to re-write ActionParsnips advice but hopefully with more directions :) It's really late here so i will have to leave it here but will try to be back in sometime tomorrow although i don't really understand any of this now. Firstly go up to the top taskbar and click on

Applications - Accessories - Terminal

and into the terminal/command window/console type in (or copy & paste with the mouse)

cd /etc/X11
ls
sudo cp xorg.conf xorg.conf.080709
ls
gksudo gedit xorg.conf

Note that sudo will want your normal user password, not your SuperUser/Root one. The "ls" is a lower-case "LS" and shows a LiSt of what's in the folder, "dir" also works but isn't colour-coded. The "cp" should create a CoPy of the xorg.conf, just in case we make a mistake and need this one back again ;) Gedit is a good text-editor although there are many others such as "vim", vim is good on a command-line that doesn't have a gui desktop available, eg on servers or in recovery mode. Anyway inside xorg.conf look for

    Section "InputDevice" Identifier "Mouse0"

and add

        Option "Resolution" "500"

into that section, possibly nearer the end of the section but i think it doesn't make much difference exactly where as long as it just go into a sub-section by mistake. I think ActionParsnip was saying that you would need 2 lines like that but give the 2nd one a different value. Sorry i haven't read the link he gave so i'm not really sure about any of this :( Hopefully someone else will pop in and give more help sometime later
Good luck and regards from
Tom :)

anyone else any more advice please

https://help.ubuntu.com/community/HowToGetHelp

also this site might be able to help as it seems more of a general linux issue rather than being specifically about Ubuntu

http://www.linuxquestions.org

Also i would re-post this question in here again
https://answers.launchpad.net/ubuntu/+source/xorg/+addquestion
and perhaps give a link back to this question
https://answers.launchpad.net/ubuntu/+source/xorg/+question/76340

Hopefully copy&paste should make this easier to post into lots of places at the same time. If you do get a good answer from elsewhere then please copy the url into here so that it might help people with a similar issue in the future.
Thanks for your patience with me
Good luck and regards from
Tom :)

still having no luck getting this sorted anyone else any ideas please

Hi :)
Sorry this is not easy. Please can you use copy&paste to post a new question about this?
https://answers.launchpad.net/ubuntu/+source/xorg/+addquestion

Launchpad is not designed to get good answers to older questions unfortunately so posting a new question about this is the only way to get other people to see this question now. When you post a new question it gets sent to the front-desk where all the new Answers Team can see it. Hopefully someone new might have more ideas on how to fix this.

I did suggest posting a new question about this last time but it doesn't look as though you did that. It might seem like a rude thing to do but pleease re-post this question. Hopefully launchpad developers might respond to the various bug-reports requesting and suggesting how to get longer term questions dealt with effectively but until then people will just find that some questions have to be re-posted. The quality of the answers can be a a bit random depending on who happens to be online within about 24hours of the question being asked = it might be better to ask during the holiday season but if it doesnt work then try again about a week after you re-post.

Now i am not sure if you also tried asking this question in a more general linux forum such as
http://www.linuxquestions.org

There is unlikely to be any documentation that you can find easily but it's worth trying the search features on this link
https://help.ubuntu.com/community/HowToGetHelp

Also now that you have some familiarity with 1 version of linux it might be worth installing another version and see if that can solve this problem more easily than in Ubuntu. All versions of linux are very similar to each other and so trying another version might help you understand Ubuntu better too. The best way to do this is as part of a multi-boot. Many linux users have 2 or 3 versions (distros) of linux installed on their system with a version of Windows still in their 'dual boot' system (really a multi-boot ;) ). For sheer beauty i would recommend trying Mandriva but openSUSE and others are also good. Many people seem to be having luck with Fedora in the unlikely event that Ubuntu doesn't completely satisfy them. This site has a good listing of the various linux distros and keeps very up-to-date as you will see from the home page which shows latest developments in magazine style
http://distrowatch.com/
These back pages help compare different ones but i would just try a LiveCd version of a few to "demo" them for yourself
http://distrowatch.com/table.php?distribution=mandriva
http://distrowatch.com/table.php?distribution=opensuse
http://distrowatch.com/table.php?distribution=fedora

This guide to running a LiveCd is Ubuntu based but they all work very much the same
https://help.ubuntu.com/community/LiveCD
I keep meaning to add a new page onto that guide to show how minor differences between different distros in getting a LiveCd session working. Mostly they use the same Cd that you can also use to install but occasionally you need a different Cd, i think openSUSE does it that way. Even more rare is for a distro to have no LiveCd, i think Pardus from Turkey is working at adding a LiveCd functionality but might not have it ready yet.

These dual-boot instructions are written for Ubuntu too but again (as always) the other distros all do the same thing in very much the same way
https://help.ubuntu.com/community/WindowsDualBoot
particularly if you look at the "Manual" or "Advanced" way of setting it up. Adding a 3rd or 4th option to the dual boot is just as easy and the boot menu tends to get sorted out automatically. I think the record i heard of was 260 different Operating systems on one machine but that included various versions of Windows and I think he had other Unix based OS's such as one of the Mac ones or straight unix, i cant remember now, it might have been 600 OS's! Anyway, the point is that 3 OS's should be fairly easy and almost automatic.

Good luck with all this!
Many regards from
Tom :)

Hi ?

I was wondering if you had any success with getting 2 mice to work in Ubuntu or any other version of linux? Did you stick with ubuntu or did you try others?

Many regards from
Tom :)