Launcher loads the white screen pops up and disappears (Imac)

[brookpiper]

Launcher Version: 253

Operating System: OS X 10.8.5 Mountain Lion

Java Version: 7

Antivirus Program:

Description of Problem:

(FOR EVERY TECHNIC PACK) Once I hit the launch button after I log in everything loads,

FML pops up along with a white window with the name of the pack. Once FML is done loading the white screen stays there for a millisecond and then closes.

Error Messages:

No Error messages

Error Log:

Absolutely no log

[RADAMS509]

i am having the same problem!

[brookpiper]

I'm glad I'm not the only one, I've looked everywhere for help but nothing works thats why I made an account on the forums

[RADAMS509]

Hey I fixed it, go to system preferences then Java at the bottom, then click on "update" on the new java control panel window that opens, click update (java 7 update 45) then restart your computer!