Gahgah

Whenver I try to join a server of TF2 I get an error that says "STEAM certificate length error! 0/2048" I looked around on google and found that this error is common in cracked steams, except mine isn't cracked. This only happens on TF2, I tried an HL2:DM server and it worked fine. Valve hasn't been too much help on this, so I was wondering if you guys had any thoughts? Any help would be appreciated.

thanks for all your help guys. ill just restart modem a couple times to be safe. thx a bunch for help. I play team fortress 2 as well, and I'm pretty sure they dont. if you youtube "tf2 on xbox" they're all god awfull. they can't set peopel ablaze as pyro at point blank, can't melee, and they suck at sniping. I think it's the dev's choice, im not sure so it might differ from game t ogame.

So I was raging people over xbox live like always, making fun of people yelling, and this one kid took it really personally. REALLY personally. I thought it was just another guy talking trash to me, but he started saying how he was gonna hack my account and stuff once I got to a high enough level ( I was on halo 3 by the way.) I was wondering what the odds of this happening are? Should I be worried and start trying to find a way to stop him, or is xbox 360 not possible to hacK? Thanks in advance, and sorry if this is in the wrong forum.