Random white lines in l4d hospital map for garrys mod?

I’m kinda having a problem on the l4d hospital, it’s giving me weird lines that i don’t know how to get rid of and i’m wondering if any one knows how to get rid of them.
http://img263.imageshack.us/i/l4dhospital04interiorda.jpg/

http://img682.imageshack.us/i/l4dhospital04interiorda.jpg/

http://img99.imageshack.us/i/41640594.jpg/

http://img101.imageshack.us/i/l4dhospital04interiorda.jpg/

Looks a bit like a kind of missing texture. Reminds me of wireframe.

How the hell did you get l4d maps in garrys mod?

You need a copy of L4D. But i got my textures from my friends and i used gcf or how ever it is but gcfscape and undid all the vpk’s and got the textures. And i don’t believe i’m missing textures cause i have all of them

Also if you want to know how to get l4d maps into gmod then go to this thread.

http://www.facepunch.com/showthread.php?t=791249

This fix was in the OP of the map

Thank you very much