Hi, I installed SpeedFan yesterday, and shortly after I started hearing this barely audible sort of "screeee.. screee" coming from the fan area. I can hear the fan is working fine, and SF says my temps are normal (around 48c to 50c when idle, maxing at just over 60c when streaming video or playing a game) so my fan doesn't seem to be dying. But I don't know anything about computers, so I don't know. I talked to an ACER guy (my laptop is an Aspire 5252) and he said use an air duster to clear out dust. I did, and I think I did it right, but the little whine is still there. Do I need to send my laptop in for repairs?