New blackberry won't connect to my computer, how odd

I just got a new blackberry, when i plugged the USB cable into my computer, it charges, but it doesnt show up as a drive
someone else plugged in their blackberry to my computer (using the same cable) and it recognized it immediately

any ideas?

fun facts:
curve 9320
windows 7 dell laptop
got the phone sunday. wasnt connecting, and my carrier recommended i go back in and get a new phone. which i did. today is wednesday, and the second blackberry wont connect either
i downloaded some drivers from the BB site, didnt help either
restarted my phone and the laptop numerous times

thanks in advance