I used the trial version. It worked fine except for the constant start new game thing. I purchased it and now it is working even worse. I slowed it down to slow, medium, had no effect on it.
It doesn't want to do most of the puzzles. It wants to play the same 3 or 4 over and over and over again. Of course this gets you nowhere as far as getting the badge. It also solves most of the puzzle then hangs up.
IE 6.0
32 bit
1280x800
smooth fonts enabled
java 2v.4.2_06
Change screen resolution to 1024x768
If it still doesn't work leave the screen size at 1024x768 and switch your java to VM. ;)