Beta Launcher; crashing during downloading

[-[Toxic]-]

I tried out the new Beta Launcher, it worked fine the first day I downloaded it. I managed to download the new pathetic Tekkit pack, but that's it. The old launcher downloads things just fine (Except custom packs, but that might be my own fault), but the Beta one simply crashes.

This first occurred with the Yogbox, I tried downloading it, everything started off fine, but once it hit Millenaire(?) it broke. It began to use heavy CPU resources, making everything freeze; naturally in reaction I started closing misc. things that I didn't need. The launcher continued to download, however. About every 2 minutes it would change which PNG it was downloading, and the percentage never went past 0%. At this point nothing would respond, so I had no choice but to manually force-shutoff my computer.

Edit: I meant to state that as time went on (waiting), the launcher was trying to use more and more resources; and that eventually it was trying to use so much, that I was forced to shut off my computer.

This occurs with every modpack (Excluding the new Tekkit?), including custom ones. Are there any methods I could attempt (Ex: Resetting some broken registry values), to hopefully fix this issue?

Thanks.

[Rashadjc]

I have the same problem I can't even download the mod packs, how do I get back to the old launcher I hate this one.

[tacoriffic926]

Try deleting your .technic folder