Hello! I have an ATI Radeon X600 graphics card. For some reason compiz only works with one user, and will not enable in the other user. I have enabled the open source driver by following the instructions on the Ubuntu wiki. I have also verified that it is working. I have had this problem in 9.04, and Linux Mint 8 and I cannot fix it. Does anyone know whats causing this to happen? I am running Ubuntu 9.10 x86_64.