Hi guys, please help. I have a 20" iMac that I bought in 2007. It runs the Leopard Mac OsX version 10.4.11, I recently uploaded the Apple suggested upgrade for Safari, the 4.0.5 version (I believe I was previously running the 3.0.4 version). No noticable difference, except that pictures and videos now take an eternity to load. So, if I surf the net and want to open a page with lots of picture, or download one, or want to watch a YouTube video (or any other) it will slow down such operation. YouTube videos are the worst, it takes a lot of time to load, shows me 2 o 3 seconds, and it need to reload again, just to show me other 3 seconds.......and so on. The Processor is a 2 GHz Intel Core 2 Duo, memory is 1 GB 667 MHz DDR2 SDRAM, L2 Cache (per processor) is 4 MB, Bus speed is 800MHz......any suggestion on how to fix it? PLEASEEEEEEEEE!!!!!