If you are getting vectored lines that sprout off of objects, and or colored squares or spots , I can almost guarantee Its you GPU thats fried out.
I currently have a graphics card that I used to run in 1600x1200 full blown settings, and then the lines started. My buddy who has the identical server with the identical card has had his do the same thing only worse about a month ago.
Theres no solution except replacement in this case. i still play, but had to lower the resolution to 1024x768 and turn off some features like lightmaps and some shading. Even still, I get the specks of discoloration and the chineese-carpet effect where "tiles" of terain textures glow lime-green and other odd colors as the card heats up.

This is surely from mass produced budget cards from companies like BFG and EVGA that are produced with zero quality control ( hence the budget prices - you get what you pay for kiddoes )
My replacement card will be in place over the weekend so I can Run with the high settings , and enjoy the wickedly excellent graphics the game can display , once again.

If you have some chiller spray ( Fry's and other electronic suppiy stores have this ) for testing circuits and chips , spray and chill the GPU and memory chips ( power off ! ) to get them cold before  testing. If you see improvement while the chips are cool , you have your demon.
Lots of cheapass components are being sold on the market these days ( reminds me of 1999-2003 when lots of dogshit was sold as peripheral components )

When suppliers buy from the lowest bidder , and the price is cheap, go figure ...

"The victorious win the battle, then go out to fight ... while the defeated go out to fight, then try to win the battle.   -SunTzu
"The only difference between a capitalist and a communist is that the communist hates competition!" -Circuit

All is well,

I got back home and checked my stuff, it was a bad plug n the card, thankfully, my card had 2 for dual monitor support. :]

Thank for the helpz

"Munchkin: One who, on being told that this is a game about politics and intrigue in 17th century Italy, asks to play a ninja."
— Andrew Rilstone

Yea, stuff like making sure the power is turned on , that kind of window licker stuff must be done 1st.  lol
Thats a harsh game of " Project Reality " when you dont have graphics.

"The victorious win the battle, then go out to fight ... while the defeated go out to fight, then try to win the battle.   -SunTzu
"The only difference between a capitalist and a communist is that the communist hates competition!" -Circuit