Comment 17 for bug 375905

Problem seems to be solved for me (maybe to soon for rejoycing but if someone else can test for his case).

My previous mouse was not a USB one but a PS2 one. In the BIOS I have parameters to support USB mouse and keyboard. These parameters were disabled. I've changed the parameters to "enabled" and the problem seems to have disappeared. Don't know why the new mouse worked few weeks with these parameters disabled???

For completness and because some actions may have had an influence in the result (maybe some cold reboot or disabling/re-enabling USB could have correctly reseted the hardware) :
1 - I first enabled only the mouse parameter (since my keyboard is PS2) and did a warm reboot. The problem seemed to disappear. But few hours later my wife had once the problem.
2 - I completly shut down the computer to do a cold boot.
3 - I disabled USB in the BIOS and rebooted until login (so no mouse, just PS2 keyboard),
4 - then rebooted into the BIOS, only enabled USB 1.1, enabled both mouse and keyboard USB support, rebooted and played a while to check everything was okay in a session,
5 - then rebooted into the BIOS, re-enabled USB2, rebooted and since then I don't have anymore problems with the mouse.

Hope this can help.