No modpacks open a window when I launch them.

[funny_monke6]

Launcher Version: Launcher Build 293

Operating System: Mac OS X 10.8.4

Java Version: 1.6.0_51

Antivirus Program:

Description of Problem:

I can open the launcher and use it just fine, but when I try to launch a modpack it doesn't work. I login and click launch, all the loading bars flash by, and the pack downloads. Then the loading bar just disappears and nothing happens. If I click launch again, the bar appears with just a "0%" over it and still nothing happens.

Error Messages:

Error Log:

[cruzerdude10]

try right clicking the launcher and press trobleshoot combatiblity it worked for me if it works spread the word

[funny_monke6]

try right clicking the launcher and press trobleshoot combatiblity it worked for me if it works spread the word

There isn't an option that says "troubleshoot combatibility" Are you sure this is on a mac?

[GiantmetalLink]

I'm having the exact same problem on my custom pack too. I hope they can fix this bug on the next update

[digsDAman]

FIXED temp disable your av then once it launched reenable!!

[funny_monke6]

FIXED temp disable your av then once it launched reenable!!

av?

[Bulldog102]

I'm haveing this same problem, I can't seem to fix it and haven't found a way thus far. What is AV anyway? Plz explain

[Bulldog102]

AV is Anti-Virus. I don't think this guy knows what he is talking about (I'm not trying to be rude). I wouldn't listen to him/her

[Bulldog102]

AV is Anti-Virus. I don't think this guy knows what he is talking about (I'm not trying to be rude). I wouldn't listen to him/her