Board Thread:Questions and Answers/@comment-98.246.93.99-20130116052821/@comment-109.129.172.29-20130118111451

I think you should just change build in the options tab in your technic launcher. That way it downloads all mods again and you start with a fresh .jar !

If that doesn't work, it might be your computer thats at fault, but I couldn't tell what's wrong,,,