Can't boot fom USB after installing Opensuse 12.3

[3mutts]

Ok, I want to test out Elementary OS on my test desktop (a Dell Dimension E521), I know this can boot form a USB as I installed Opensuse from a USB and I tested the USB in my laptop and it booted just fine. I also know the USB ports are working because I can use my USB connected keyboard. Well, it looks like the BIOS is skipping the USB and booting to Opensuse (and I have it set to boot from the USB first). Is there anyway to fix this?

[Lew_Rockwell_Fan]

2 long shot thoughts occur to me:

1-

I also know the USB ports are working because I can use my USB connected keyboard.

You might want to double check that. Just because one is working doesn;t mean they all are. On the mobo I just retired some worked and some didn't.

2-I had a system that wouldn't boot from a perfectly good cd unless I hit del to enter the bios setup when booting, waited a moment, and then closed it without changing anything. Sounds weird, I know. But it worked. You might try it.

[3mutts]

^ Already tried switching the USB ports and it didn't work, Ill try your other suggestion today.

[3mutts]

Nope didn't work.