Ubuntu :: Natty Login - With Ati Catalyst Control Center - Screen Goes Blank ?

I just did a fresh install of natty, installed a few programs along with the ati catalyst control center.

I am having serious login issues, here is what I do:

I am at the login screen right from start-up, type in username and passward and hit enter, screen goes blank, it appears I am logging in, ubuntu plays a sound and puts me back at the login screen. I do not get an "Authentication Failed" error like I would expect. Unable to login as myself or as root.

However, I am able to login if I select the "safe mode," I am not able to login under the normal mode or the ubuntu classic modes.

I suspect that this issue has to do with the ati proprietary drivers, after playing with the settings for a while in safe mode I am now able to login to the normal natty mode without any apparent issues.

Here is what I changed in ati catalyst control center to boot into natty mode:

I disabled the Xinerama and Tear Free options.

Under the 3D settings, I selected the "override application setting" for all the 3D settings I could.

I believe I still have some display issues as I am unable to drag windows from one display to another, my mouse is able to move just fine across displays though.

I also found that enabling Xinerama prevented me from logging into the ubuntu and ubuntu classic modes, but I was able to login to the ubuntu with no effects mode.