There is a warning on the CE Software website indicating that the current Quickeys Version (X2) is incompatible with Panther. Unfortunately, I did not see the website warning until after I installed Panther. Now, I am unable to launch any program, preferences or other untility.
I tried deleting Quickeys but that still did not fix the problem. The desktop is unstable and constantly flashes on and off. It's very weird.
I will call Apple tomorrow.