I have a compooper problem?

My computer is messed up again so I tried to play my game TF2 on my moms laptop. But when I downloaded it on the laptop it doesn't show the servers nor I can join my friends servers, what is wrong?

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By Trigger Happy.
Link: http://answers.yahoo.com/question/index?qid=20090808233726AAx5LTz
Snapshot: http://i38.tinypic.com/10cu4yf.jpg
Have I reported it? No.

It has been deleted since.