I've pretty much decided to replace the capacitors. It's workable for now, so I will put it on a lower priority until it gets worse. At least I now know what's wrong with it.

Thank you all for your help! I was ambivalent in signing up here, but I finally took the plunge and it has turned up tons of valuable information. I really appreciate this opportunity, and I hope to stick around in this forum for a long while yet.

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