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Windows XP SP3, Revolution 4.0.0 build 950

Sometimes, when I set a breakpoint in my script and then hit stop debugging, revolution locks up and runs at 50% CPU. I can't exit, switch windows, minimize... nothing. I have to end process in task manager and re-open Revolution to fix it. Any ideas?

Double-check that you don't have any loop going on in your own code. If your code checks out okay then check the bug DB for this issue and:

Don't use breakpoints or debugging. Use "put variablename" at the point you want instead. Might sound primitive, but hey, this is my habit and I never lock up.

Always save and duplicate stacks frequently just in case.

Well, the locking up happens randomly. It wasn't in a loop this time though. I use breakpoints for stepping as I show and explain code here at work sometimes.