Windows 7: Seagate 1 TB External HDD Trouble

I just bought an external Seagate FreeAgent GoFlex 1 TB External HDD and when I plug it into the USB 3.0 on my motherboard, it recognizes the device and the autoplay comes up. However, after about 2 seconds it disconnects and I cannot see the device. When I plug into any other USB 2.0 port, it works just fine but when I plug into my USB 3.0 port, it doesn't stay connected. I am not a newbie and I am not missing anything here. I have all the proper drivers, updated, etc. I have checked the cable but I do not have any more USB 3.0 devices to troubleshoot it with. Please help if I am missing anything here...

VVV Click the "My System Specs" link that this forum provides to see what I am working with.

Don't know if this will help or not but not too long ago I bought a 1TB freeagent goflex usb 2.0 with an extra esata cable. When using the esata cable I'd get a momentary autoplay dialog box and then nothing. The usb 2.0 cable worked fine. I contacted Seagate customer support, explained the problem, and they over-nighted me a new esata cable. Seems they had a run of defective cables where it attaches to the drive itself.

Sounds similar to what I am experiencing. I might just return the darn thing and get a new one or just get my money back. Really hoping there is not a problem with the USB ports themselves though, that would really be a kick in the a**.