All of a sudden, I can no longer connect to my 770 to my PC via USB. It used to work fine, even after I upgraded to 2006 -49. Today when I tried to conncect, I get an error message saying something like, "System is using memory card for extended memory. All applications must be closed before connecting memory card via USB. Remove USB cable or tap 'Close Applications' ..." When I tap 'close applications' a message apears saying, " Unable to connect via USB. Memory card in use."

I have no idea what to do about this. Can anybody help?!

BTW, I was able to locate a thread here where someone else had an identical problem. They tried disabling virtual memory and it still did not work.