i delete the minecraft folder and updated minecraft, then i run the client and it tells me that minecraft is not updated, and it stop there?
So you've deleted .minecraft folder Run the default MC client to download 1.2.5 Run the GC launcher and done update and it's still not working?....I've had a problem where i did the above and clicking launch doesn't work, i just ran the normal minecraft exe and it plays fine but clicking the launch button on the GC client doesn't work...give that a try and see if it works. If it does last time i fixed that i had to uninstall and re-install java, then MC then the GC client