Launcher Version: 249
Operating System: OSX 10.8.3 Mountain Lion
Java Version: 1.7.0_21
Antivirus Program: iAntivirus
Description of Problem:
When I try to downgrade Tekkit Classic To 3.0.0, it closes even before the Mojang screen. It goes to a white screen then closes with no crash report.
Error Messages:
There isn't none---it just closes.
Error Log:
There isn't none---it just closes.