I guess your keyboard is not compatible, it's displaying in Caps
Seriously: The MS site is very up to date with these things, if you don't have problems, then I wouldn't worry. As long as it's not a 'blacklisted' app, you're fine. Unless you want to run a really old program written for pre XP OS'es, then you have a problem, but that's logical.
Well, there are some. Seems like Windows Explorer is Crashing quite a bit. And then I get an error message like Drwatson Debugger Postmortem has to close, because it encoutered problems. My IE , when I close it using the File Menu on the Left top hand corner it crashes.??
When you say My IE I wonder if you are talking about MyIE2 (Maxthon). If so it may be that some of it's features conflict with Internet Explorer's new features in SP2. It is based on and may use some registry keys from IE for some of it's tasks.
Maybe try using IE as default browser for a while to see if this is the case.