IDE wont start

After I instelled arduino drivers and all that stuff, I run arduino software and after logg screen nothing happened. I tried everything what i can find on forum to fix this problem, deleted preferences file, copied rxtxSerial.dll file to windows folder, but problem is still here. Please can someone help

OS?
Platform?

I am having the same problem with windows 8 64 bit. The splash screen comes up but nothing past that. Any help is appreciated.
EDIT: I installed 1.5 and now it works but I can't find the port any more =(