I have an iMac and the bluetooth mouse and keyboard stoped responding last week. At first the bluetooth connection was dropping and reconnecting every 30 seconds or so. When I was able to connect I went through the PRAM and SMC reset and that didn't fix it. Now they will not connect at all. I went and bought a USB mouse and keyboard thinking it was just a bluetooth issue but those do not work either. I've read that reinstalling the OS might fix it but I had a CD in the drive when this started and I can't get it out. Hope someone might have some ideas on what might fix this. This thing is less than 2 years old and the entire reasoning behind purchasing it was that the Mac would last much longer than a PC! Hope I wasn't wrong about that.