again dist-upgrade (Mon Sep 19 10:20:26 EEST 2011) the problem persists, but less frequently.
Linux 3.0.0-11-generic #18-Ubuntu SMP Tue Sep 13 23:38:01 UTC 2011 x86_64 xserver-xorg-video-ati_6.14.99~git20110811.g93fc084-0ubuntu1_amd64.deb
again dist-upgrade (Mon Sep 19 10:20:26 EEST 2011) the problem persists, but less frequently.
Linux 3.0.0-11-generic #18-Ubuntu SMP Tue Sep 13 23:38:01 UTC 2011 x86_64 xorg-video- ati_6.14. 99~git20110811. g93fc084- 0ubuntu1_ amd64.deb
xserver-