hey i fixed the bouncing logo thing!!!!
 

:idea: ok. so i tried re-installing java and everything else everyone was suggesting, but it turns out when i checked my system, i had version 10.3.5 of osx. so when you try to download and it asks what type of computor you have, try clicking the link that says older versions. its kinda off to the side in its own little box. but i clicked the link for panther and now its working just fine. might help somebody....good luck!