Oh my god! Here's the story: My iMac was really quiet before, only noticable in a silent room. I just wanted to test if I mabye get it even QUIETER with "iMac Fan Control" - I installed the thing and after doing so, the DVD fan (and probably also the HD fan) boosted up in a second, now run MUCH higher and noisier than before. When I saw that the iMac Fan control settings were at their LOWEST, I deinstalled the program and also deleted any files from this program. But the fans keep going strong, even after rebooting and turning off the computer! It is as if there now is a new standard fan setting "branded" in my iMac. OMG, can anybody help me how to fix this? Sorry for talking confusing ****, but I am in panic right now. Thanks in advance!!!