Thank you so much. Your answer was thorough and informative.

After posting my thread, I thought it might have something to do with PP, so I set PP's preferences to ignore the LW folder. This morning, LW is still installed, so maybe it worked okay. But I noticed a few other threads in these forums that say basically what you said: PP is not recommended for P2P networks. I used to LOVE that program because it was fabulous (yes, it was about 18 months ago!). Not so much anymore. It's quirky and quite irritating, lately.

Thanks again. I'll check out your suggestion, too.