Nostalrius Begins - Quality wow vanilla realm (1.12)

So this happened today when I logged in
It affects every character I login with.
The models and everything else were completely fine yesterday when I downloaded the game and started playing. I did however take the file "misc.MPQ" from another client download and not the installer because the installer said that file was corrupt and wouldn't work, but like I said the game ran fine yesterday after downloading.
I do have the live version of WoW installed if that could have anything to do with it.
Any help on why is this happening and how to possibly fix it would be appreciated because currently the game is unplayable for me. Thanks.

redownload the client and reinstall. a corrupt MPQ could have been from a corrupt download. A lot of us have the current retail version of wow installed and don't have this issue. mix and matching MPQs is a bad Idea and could be the culprit.

Yeah fixed it by redownloading. Should have tried that before posing really. Don't know why the download was corrupted the first time.