hello all. i'm running a G5 2.0 dual, with 1 gig of RAM. so my question is why is my computer taking about 5 minutes to boot up properly? when i turn it on, the hard drive icon and other items (saved to desktop) will not show up on my desktop. also the spinning rainbow circle thing keeps going (its the mouse cursor) during this startup too. but if i go to my dock and start a program, lets say iTunes, it will work ok. if anyone knows how to fix this then let me know. it will be a great help!! should i reformatt? get an ant-virus program?