i think the game broke itself for whatever reason..
here's a proof http://cloud-3.steampowered.com/ugc/3262043107318381779/737587CE30BC6BB4...
the last thing i know was i left my room leaving the game on,came back with the game somehow closed,i reopened it then it happens
here's the log-in screen,the whole world background is now a white mess http://cloud-3.steampowered.com/ugc/3262043107318246180/CF432054E7AB956C...
anyhow,can someone tell me how to fix this ?
I actually know exactly what this is. As i have a steam archive full of shots like this back during the Halloween event in 2013.
It is literally your graphics driver being out of date.
I had had admin assistance trying to trouble shoot this in the past. You are likely going have to have manually force your driver to update, or at least force it to realize there is an update.
My experiences were more graphical and less wrecked polygons, but still
http://steamcommunity.com/sharedfiles/filedetails/?id=188442802
Right Click on the game in your library
->Properties
->Local Files Tab
->Verify Game Cache (last button out of the four)
I'm not an expert by any means, but it looks like it might be that a lot of necessary files are missing. Try uninstalling and then re-installing the game, if you haven't already.