Same problem here :
Visual corruptions + "GPU hang" error when scrolling in Firefox with 3.5.0-26.
Everything back to normal on 3.5.0-25 (Linux 3.5.0-25-generic #39-Ubuntu SMP Mon Feb 25 18:26:58 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux)
Same problem here :
Visual corruptions + "GPU hang" error when scrolling in Firefox with 3.5.0-26.
Everything back to normal on 3.5.0-25 (Linux 3.5.0-25-generic #39-Ubuntu SMP Mon Feb 25 18:26:58 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux)