When I first installed 10.04 my dual head ATI Radeon (9500/9800... can't remember which) would show all those cool desktop effects...wobbly windows etc. Tha has topped working, but I don't know why. It might have something to do with trying to fix a bluray issue. I've also lost the ability to control my monitors ( DELL 24" and and 42" SHARP HDMI TV). I tried running ATI Catalyst, but it says hardware not supported, and I get nothing further from that.

I feel like I would have to re-install Ubuntu, but have already made enough configuration changes/software additions that I really don't want to do that if I don't have to. Can I run a "REPAIR" from the install CD? Alternatively, can I update to 10.10 without erasing my updates?