>>Since an hour, I am having a weird problem. Whenever I built my application for the 2nd time, VFP freezes. I have to kill the application and restart VFP to be able to compile. I even rebooted and that is still the same. So, I quit VFP about 40 times in the last 20 minutes. Anyone has seen that behavior before?>>

Is this an App created with earlier version of VFP? If yes, try to do a fresh "Rebuild Project" and tick the checkbox "recompile all" and see whats the effect..

You have to do for once...