I have an Nvidia GeForce 8200M graphics card and ran into some trouble with Compiz. I changed Visual Effects to "None" and now cannot change back to any other setting, including "Normal." I found this thread:
The OP on that thread seems to have his problem solved, but I am not sure of the exact steps to take to get the newest Nvidia 180 driver. I currently have the nvidia-glx-177 driver. I just want to make sure I get the steps right, because I just installed yesterday and really do not want to mess up my installation if at all avoidable.