Didn't bother logging in, but I wanted to watch the responses, if any.
*Dreadfully slow graph rendering in Excel 2007 if you do anything other than default axis settings. (On operations that are instantaneous in 2003)
*After 2 decades, you'd think they'd figure out that if a "-" is followed by unparsable text, it is "text" and not a "formula". They could, you know, use the same algorithm they already use for all other cell input to determine this.
*A real clipboard behavior for simple copy/paste in Excel. Again, you'd think they'd figure out how to keep one copy of something in a buffer while you edit something else. Clarisworks 2.0 from 1990 does this correctly. It's the only program I know that doesn't have this most basic of features.
*get rid of the stupid window-in-a-window scheme they had since windows 3.1 (or earlier?). It never made sense to me and makes working with multiple programs a bitch.
We are Microsoft. Unix is irrelevant. Openness is futile. Prepare to be assimilated.