YA.
you mentioned that you have the desktop...ie 3.7
but you will have to download 3.7 software.....
once you have the 3.7 saved/downloaded to you pc
close your desktop 3.7...and run the 3.7 software/....
there will be a box that pops up..."no new software found...install older version?"
click yes and your back on your way........
I hope I was clear enough??
Why are you ridding you berry of 4.0?????