I was having problems with my X going crazy after resuming form suspend as well, so I downloaded the edgy install CD and installed it fresh on my laptop. so far it seems to be working well when resuming form suspend. But, when upgrading from dapper, it had network and X issues when resuming.
-- edgy gnome-power-manager brings down network after suspend https://launchpad.net/bugs/67783 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs