Hello, everyone. I've encountered a problem, that's been occurring to me for the past year. Whenever i switch to 9400gt from my integrated graphics card and start the computer, the monitor sometimes just wouldn't detect my graphics card. I have to restart and restart countless times, until my monitor picks up the signal. So far, my only guess is that my power supply (CODEGEN 400w) can't handle it. I'm on my integrated video card right now, which is Geforce 7050pv. PC specs: AMD Athlon 64 X2 Dual Core Processor 6000+ 2.99ghz 4gb RAM Motherboard: ALiveNF7G-HDready. PSU; CODEGEN 400W I would really appreciate the help.