Epicurwin,
I have experienced the exact same problem and have NO idea why it happens. It only happens once in awhile and the solution is as you described. I have found that when I delete the "Temp" system, it doesn't happen again for awhile. I'd love to know what causes this extremely annoying issue. But, then again, I'd love to have a lot of answers to why AutoCad is so powerful but so bloody frustrating. I hope someone here can help!
Thanks
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