I have almost always a lagg when I play Battlefield Vietnam. What can I do to reduce the lagg. I have got ADSL as far as i know and I always have a ping on CS about 30. SO.. Plz.. help me because I don't want a lagg anymore!!!!!
Maybe there is a program or something to reduce laggs..but plz help me!

My computer is: P4 2.5Ghz, 512MBram, ATI radeon 9500pro/9700.


ps: Since a month I also got a lagg on CS about 100..