Do you have a printer driver installed on your computer?
We had a problem some years ago where our printer servers were down. This caused PADS Layout to hang when starting Preview.
We solved this by setting the default printer to a PDF driver instead.
I'll look into this. I do have printer drivers (and can send the CAM layers to the printer), but I'll experiment with driver settings.
No dice. No changes to the Printer Driver settings that I can come up with work. Even if I set the Output Device from 'Photo' to 'Print', the Preview still doesn't work. Nothing happens.
Well well well. I don't know what I just did, but I seem to have fixed the problem (at least for now). Somehow I opened a second instance of PADS, loaded the same design (so two instances of the program were open, and each one had the same design open. This then created a permission issue if I tried to save the design on the second instance (due to the fact that the first instance was blocking access to the second). And in this situation, I now somehow have CAM preview working. There may have been some type of conflict. Now, after closing both instances and re-starting PADS, the CAM preview seems to be working. I have no idea how this changed anything, but it did.