Edit: I updated my drivers and it appears to be a lot less freezing now, still leave comments if you have ideas. Thanks.

Original Message:
Hmm when I went to absolute lowest settings and lowest res (320xsomething) I got an error saying -
Default shader /shader/std_lighting.xml
not available
Where can I get this, should I reinstall?
I tried to repair but it didn't download the file. It found other ones, but no shaders.
By the way.... I still have the freezing in lowest settings & res, it's not lag , like the game isn't that slow, it just freezes... and I have like 5 mbps internet which should be fast enough. Also, it happens on both servers.