this happen in HL2DM though ive seen it happen in CSS aswell'
when ever i put a glass or monitor texture on something i get a black and purple checkered field. you can actually see through the glass but the checkers are still there reduced visibility highly.
Ive had this problem a couple of times when playing a map on a server, but somehow my friend didnt have the checkers.
By the way, the textures are not custom made and alrready show up in hammer as checkered purple/black
I saw a thread about this but the last post was in november s i didnt want to dig it up again.
The people in there said it means the textures missing, but how can it be missing if i just selected it from the browser in hammer?
Could it be my computer?