I hope this is the right section for this question. I have had a problem with my iMac overheating and shutting down. Some searches led me to SMC Fan Control, which is supposed to allow me to control the fan speed. The problem is, when I install this program I can't seem to use it. The icon is on my desktop, but nothing happens when I click on it. Yet if I try to trash it, I get the message that it can't be put in the trash because it's open. I am using an iMac OS 10.6.8 with an Intel processor, so it should meet the requirements. Does anyone know if there's any trick to making this program work? Thanks in advance.