I'm just starting out using linux and so I installed Ubuntu to a hard disk.
I noticed that after 30 minutes or so, the mouse pointer would simply stop moving while the keyboard was o.k.
Exact same problem with Fedora as well. (The mouse works fine in Vista (it's a MS Comfort mouse 1000))
I searched and found a suggestion that I should disable the sleep settings, so I did that but no luck.
Interestingly, there is no freezing of the mouse when I use the Ubuntu Live CD - it's only the hard-disk-installed Ubuntu that's having the problem.
Update Found some old links from 2009 that say I should remove the "mouseemu" package. How to remove that package?
Update Unfortunately, that did not help - there is no mouseemu pkg installed. I tried setting kernel boot options noapic, irqpoll etc. - no luck. This is so annoying.