Next time you see it, or even when you run VDJ, also run your Task Manager and monitor the memory usage. If it continually goes up, they have a "memory leak" which eats RAM each time it runs.
I have a program "System Mechanic 7" that cleans registry, reorganizes RAM (every time I run it), defrags HDD (when I approve), and removes unused clutter files on the HDD.
I'd try something like this if the problem continues. I thought shutting the computer off cleared all RAM contents, but then there is the "Virtual Memory"... who knows what lurks in that MS mystery file.
