This may or may not be of help as I'm on a mac not a PC, but i had similar problems just after I got up and running. My computer froze and I had to restart while VI had been running. Following the restart VI didn't recognize my files, despite having relinked them in the Directory.
I restarted several times and eventually it all started to work, but not before I had moved my VI Key to a new USB port so that it would recognize the Key. I had been using one directly into the tower, but it still didn't like it, and this caused the program in standalone not to flash up the "scanning licenses" or following this, the "loading please wait".
I now have a powered USB hub holding both my Logic Dongle and my VI key and things seem to be running very smoothly.
As I said, this may or may not be of help, but I hope it is. If nothing else, it's a small show of understanding.... [[;)]]
Hope you get things sorted.
Nick
[:)]