Minecraft Forums

So I had a stupid moment and when i first got magic launcher, I had my minecraft.jar changed without backing it up. So when i decided to download the zelda adventurecraft client, I was surprised to find That my original minecraft.jar is missing. A quick run on google told me all would be fixed if i forced update. I go to force update in options, and it's there, but, it's blacked out and clicking it doesnt do anything. I just need to know, how to force update?