Weird trails / uncleared buffer in bedroom or kitchen - v15 automatically lowers your view distance if you are getting less than 20 fps. Low view distances do not work well in interiors. You can disable this feature in options->advanced by unchecking "Automatic Draw Distance Adjustment"
sorry about double postnot the problem
WTF IT SI NOT THE F%$@!?% PROBLEM!!!I TRIED IT AND NOTHING HAPPENED