Is there anyway to make my computer faster(you know, no lag) for online gaming. I have a new computer and DSL and yet i still lag online.

is there anything i can do or buy to stop the lag?

Thanks for any info ppl

Oh yeah this is the computer I have. The computer i have is called a HP Pavilion a1120n Here is some specs below and a link
http://www.bestbuy.com/site/olspage....=1124431830747

I bought this computer last summer.