Yep. I've been a happy fbsd user for many years. Because of that I'm used to logon using a 'normal' user account and only use su when needed.

Unfortunately on my windows box alot of software (especially games!) just don't work properly if you run it on a non-administrator account. Complaining to the manufacturer of the software is probably a good idea. If everybody does that they might be inclined to fix it in their next product or update.