I need some serious help. Every time i try to play certain games(Left 4 dead 2, counter strike source, Borderlands 2) in steam with my friends, I get horrible internet lag. My ping is extremely high for no reason. I get up to 900+ ping in games and the connection is horrible. My friends get very low pings while I play on abnormally high pings. I don't have this problem playing other games like Battlefield 3, Arma 2, Hawken, etc. I only get this problem usually on Valve games and Borderlands. This problem started when an incident happen where it deleted all my drivers and i had to re install them. I had to download wifi drivers from Realtek because i lost the driver for my wifi card in my PC. Here is the Wifi card that is installed in my PC ( http://www.trendnet.com/products/proddetail.asp?prod=18... ). It used to be gone until that incident. This internet lag problem irritates me. I can't play with my friends. Can someone please help me?