What machine and OS are you using?
Sorry, problem fixed now.
Seems like there was some error in the Arduino folder itself, replaced with a new download. All working now. I should have thought of this in the first place :P
But since all configuration files are in my documents it's not something that came to mind at first :P
Did you delete the two original postings? If so, why? It's important in a froum like this for people who search to be able to find the question, as well as the answer. Remember that others may weel have the same problem that you did, and will appreciate an explanation of how to solve it.