I recently decided to go ahead and install 5.1.3. It worked 2 times, and now won't start up anymore. It loads through the ASIO stuff ok, then the main Icon window disappears and there's a little dialog box that says "Loading Logic Control Module". And it stays there forever. Anyone else experience this? Why is this happening? Are there any known incompatibilities between the XSkey drivers for 4.x and 5.x? Is there any way I can prevent the "loading" of the LC module, since I don't have and will never have a Logic Control? Is there any problem with having 4.x and 5.x in the same folder to allow them to share drivers and plugins (not concurrently, of course)? Could the fact that I have both the XSkey and the 4.x dongle plugged in to USB ports be a problem? Thanks for any light that can be shed on this. Gregory