“ Originally Posted by sl8dogg 
”
Dash,
I know this thread is old, but I found this when searching for my problem. Identical to yours. The real deal San Disk 2gb card, all of a sudden my Touch won't recognize it as even being in teh phone like what happened to you. My stand alone card reader can read it on my pc, so it doesn't seem to be the card. My touch still does read other cards though fine, and this happened out of the blue. I've tried all the obvious fixes and trouble shooting things...
Did you ever find a remedy? I know, you took it back to the store right? lol....
naw i just brought back to the store...... its the missing drivers on the touch that can casue this every once in a while.