Google desktop was what was the problem for me when I had that popping up. I had to tell it not to index that directory.
Global @StarGeek
ParagonWiki.com-The original is still the best!
My Hero Merit rolls
Accuracy needed for 95% ToHit spreadsheet
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Search Wiki Patch notes, add site:ParagonWiki.com inurl:patch_notes to your Google Search
I despise that program 
. It's definitely not on my computer, but I do have another program I think might try to backup that directory, I'll try disabling that, thanks StarGeek 
10 50's To Date! Check out Titan Sentinel; it got my CoH presence synced online
I logged in today and saw this: "Could not open chat log file. Disabling chat logging.". So I naturally went to options and forced it back enabled, a couple minutes later it did it again so I logged, verified, and re-logged and it was still doing it. I opened the chatlog folder and it successfully created a file for today that isn't corrupt or broken or set to read-only or anything.
Any idea what causes this? I sent a petition for help but I always end up bored and log before the GM ever shows up (I think it was 30+mins this time before I gave up and logged).
10 50's To Date! Check out Titan Sentinel; it got my CoH presence synced online