I have browsed the ATI Bugzilla and it is very probable that the problem is caused by the option PairMode.
http://ati.cchtml.com/ -- [fglrx] Scrambled mouse pointer and parts of screen in big desktop mode https://bugs.launchpad.net/bugs/106148 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs