Thanks for taking the time to look at this. I am going to upgrade Mozilla, but just haven't had the time yet. We're running a rather old and slow, 466mhz Celeron box, and the issue with the game seems to largely be one of performance. On the same box, the game performed better under Windows. Perhaps upgrading Mozilla will help. Perhaps Opera will perform better. Perhaps I should just buy a new box! I just need to find the time to sit down and work through some of these options.
Last night I took some time to hunt down some other games suggested by John Helms in an email he sent me. I managed to latch on to Pingus. I started it, the music played, Jeff took one look, and then he shoved me aside so he could play the game for the rest of the evening<grin>.
I may eventually try a different Linux distribution. I went with Sun's because I was curious to see what it was all about, and I'm actually favorably impressed with it, but in the long term I'm beginning to think some other distribution might be better for us.