I have a GFI outlet in my garage which trips during bad thunderstorms. I live on the gulf coast, so this is at least once every other week. I know it's not supposed to be plugged in here, but I have a frig in the GFI (doesn't really matter b/c when the GFI trips it knocks out the whole garage). Anyhow, until 3-4 weeks ago, it would reset easily if tripped. But now (the last 2-3 times), it resets for only a split second, then trips again. Here's the weird part.......if I leave it alone overnight, it resets with no trouble the next morning. Any ides???