I just replaced the PSU in my rig after the surge protector failed to protect the last one. I bought a 650 watt Antec power supply, and from the moment I installed it today, everything's been acting ok, except at random moments I get pauses that last about a second or two, and then it starts moving again. Things like MP3's playing will stop, mouse/keyboard inputs are unresponsive when it does, but as far as I can tell, nothing is wrong. My temps are well below warning level, and my voltages are just fine. I really can't think of what the problem could be. I know my system likes it's power, but there's no way I'm not giving it enough. And before the old PSU died, I never had this problem. Any suggestions are appreciated.