I have just built a brand new system... Here's the problem: no sooner than I turn the system on, it shuts back down. I don't know what it is. I think it's my power supply or perhaps it's not getting enough juice from the surge protector strip. My previous system worked just fine with the same 300W power supply. Here are the "configs" on my newer system: Chaintech 7VJL Apogee MB (KT333) AMD 2100XP + OEM 512MB PNY DDR 2100 80 GB Western Digital HD 300W CompUSA Power Supply Chieftec Dragon Chasis Thermaltake Volcano 5 Heatsink/Fan Arctic Silver 3 Thermal Paste Thank you, in advance, for any advise you can give!