Hi I have registered in hope someone may be able to offer help or advice. I've had my iMac i5 for around 4 months now. Im new to mac and first impressions were wow this thing is quick. Recently the machine has become very very slow with the ball coming on launch with limited apps running. I have run the hardware test and verified the hard drive disc, I have also opened terminal when the problem exhibits itself checking CPU with nothing above 5% also in excess of 2g of free ram available. I don't vist torrent sites with all software purchased or sourced from legitimate sites. Any advice would be very much appreciated. Thanks in advance.