Cam2PC hangs on splash screen

After a flawless trial that expired, I have purchased and registered cam2pc. Now the software doesn't get past the splash screen and hangs. If I open jpg pictures from Windows explorer, they display in cam2pc correctly if I select cam2pc from the Open With . . . option. Double clicking opens the jpg in Microsoft Picture Viewer despite cam2pc being properly associated to handle jpg file types. I purchased cam2pc hoping to produce a slideshow for presentation tomorrow. Guess not. Hope this isn't $39CA down the drain.
Anyone have any ideas?
Anyone have any ideas?