I have a Gigabit G4 Dual CPU, and it runs great, except for the fact that everytime I open it to perform an upgrade it absolutely freaks out. I often have to reset the PROM or something along those lines just to get it to boot afterwards. I first turn off the machine, unplug the power cable then unplug the peripherals. Does anyone have any tips on what I might be doing wrong? Should I wait a specific amount of time for the motherboard to lose charge after I unplug the power cable? Thanks for any help.