I am extremely hesitant to clear cookies and such because I sign into a lot of things that require secure access codes from my clients. If it helps resolves this portion of the diagnosis, a coworker actually brought this problem to my attention and I went to the same two client examples and ran into the same problem. One had Group by drop downs, and the other did not. So it's two completely different computers seeing the same problem (and non-problem) for the two example accounts.