I'm not actually sure on that. I've been running AIGLX for a long time. But I did run XGL/Compiz when it first was released, and I don't recall for sure, but I don't think that it exhibited the same symptoms.
But I do think that it's a compiz problem anyway. The scroll icon does not leave a trail when compiz is disabled and AIGLX is left running. (It's enabled by default in Edgy). Regardless, I never filed a bug because I thought it would be worked out of compiz. But I saw your bug when I was looking for solutions to the slow scrolling, and I figured I may as well confirm it. -- compiz: firefox autoscrolling cursor leaves trailing marks https://launchpad.net/bugs/58622 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs