Hello, I am new to these forums and was hoping to find some answers to a problem my iMac has recently developed. It is the aluminum 2.4 Ghz Intel Core Duo with 1 GB 667 MHz DDR2 SDRAM factory installed. In the last three or four days it is booting and processing extremely slowly without any real know reason. Often it will run at regular speed when doing simple web browsing or word processing but as soon as I go to stream video or even load my iphoto library or bring up imovie it "thinks" for an extremely long time. I feel it may be a RAM issue but have no reason why this would start happening so suddenly. Any thoughts ideas or suggestions would be much appreciated. Thanks. (If it matters I have had the computer for a year and 3 months).