I have a mac pro 2x2.66ghz with 3 GB of ram and the standard nvidia 7300 card. Running programs like iphoto takes about 10 seconds. When I run world of warcraft, everything else seems very sluggish. When I place my cursor across the icons in my dock, the magnifying animation even seem very sluggish. Is this about average for 3gb of ram? What should I do to determine for sure if there is something wrong or not?