Itouch is not recongized by windows -or- Itunes

I can't connect my ipod touch to the computer or itunes, I've tried restarting all the systems involve, deleting the driver and reinstalling it, and all sorts of stuff.
Please help! I just bought this thing!
When I look at it in the device manager it always has a yellow triangle with a in it.

i've been having issues with my actual USB driver on my new laptop. The DELL company had actually installed it incorrectly. Have you tried reinstalling the actual driver for the USB which came with the computer. I have no idea how to do this, someone else did it for me, but it got my USB up and working again. It could just be a problem with that rather then a problem with your Ipod.