If it helps, I found this to be caused by the installation of Catalyst 11.5. The mouse behaves normally again upon reinstalling Catalyst 11.4. I'm running a Radeon HD 5770 on an ASUS M4A89TD PRO/USB3.
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/787998 Title: the mouse pointer freezes for a moment and goes in spurts in the lower right _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp