Since neither the beta nor the jum version made any difference, I'd figure the problem is with the java. However, Phex, also a java app, worked for someone else, if I recall correctly
Anything useful with the Console output?
re Safe Boot, it completes once you get to the login. So, just restart normally instead of logging in. Safe Boot runs a file system check and repair (fsck), especially on the OS stuff.
here's the Phex link the new forum doesn't like it for some reason.
Phex - Home