My slim overheats easily--even on a freestanding table with the games saved to the hard drive, after about 20 min I get sound and picture flutter that only goes away if a fan is pointed at the side of the slim. I've emptied the cache. The room temperature is in the low 70s. The fan puts out a gentle breeze. So I'm wondering a few things. Is the fan supposed to run fast enough to really blow air with some force? Could dust be a problem, and if so how do I remove it? Is this typical for a slim (my old white Xbox never overheated)? Or is this a parts problem?