I suspect that this is a diuplicate of #173411 and similar. See the comment at https://bugs.launchpad.net/ubuntu/hardy/+source/xorg/+bug/173411/comments/44 for what sounds to be the problem you are encountering.
I suspect that this is a diuplicate of #173411 and similar. See the comment at https:/ /bugs.launchpad .net/ubuntu/ hardy/+ source/ xorg/+bug/ 173411/ comments/ 44 for what sounds to be the problem you are encountering.