I downloaded GC today and when i log in, this popped out " ur game client is not up to date" or smth like that.. So what should/can i do to overcome that and start playing GC?
Did you run the GrandChase client?
Since you already downloaded it , you need to let the patcher run so it can update and be "Up to date".
Usually id just suggest manually putting in the patch but Gc dosen't offer that option.
I don't think your patcher patched the files correctly. There might be an unknown error in your patching. Either wait for tomorrow's patch, or re-install the client. If you are just starting to play the game, try re-downloading the client from a different server like MMOsite.