Can't mount SD card after update to 2.2.2

[mk3]

Now what? I took my wife's Transform into the Sprint store so they could update to 2.2.2 and now when I plug in usb to my computer it won't give me access to my sd card. I have tried two different cards and three different cables. Damn Sprint! I have tried USB Debugging on and off. Is there a new setting I missed?