Antec TruePower clicking noise

[Timaphillips]

Just bought an Antec Truepower Trio 430 ATX PSU for my HP. The problem I'm having is when I start-up every time the PSU makes a clicking sound like the internal fan is hitting something. It's not a really loud sound like it's ruining some wire in there, but annoyingnone-the-less. I haven't taken it back to Best Buy yet because the clicking goes away after 5 minutes. I'm assuming as the PSU gets hotter things are just working better or the fan speed kicks up and doesn't hit anything. Any ideas???

Here's the link to it:

http://www.bestbuy.com/site/olspage...power&lp=3&type=product&cp=1&id=1156203858494