Why Does My Computer Keep Turning Off In The Middle Of A Online Game?

I just finished building a new gaming computer.
A8N-E Asus Motherboard
Biostar Egate GeForce 6600GT PCI-E video card
AMD Athlon 64 Processor 3800+ 939
Linksys wireless-G PCI adapter with speedbooster network card
Windows XP Professional x64 Edition
Seagate 320G SATA hard drive
52x CD SATA driver
Antec Neo HE 500w power suply
I have installed all up-to-date drivers. The only driver in question is the network card. I could only find one that would work. I start playing any online game though and it plays great for about 5-10 min. then computer just shuts down in the middle of the game. Sometimes it turns back on by itself after a few seconds. Other times I have to turn it back on myself. Never got any error message or anything after turning it back on though. One time even punched desk after about 5 minutes of it shutting off on me and it just turned back on itself. Check power connections in and out of computer can not find any bad.
Can anyone help me?

I Have Pentium Xp Windows Dell Desk Top Computer And Done A Dell Rest To When Purchased?

unfortuneatly i entered reset date prior to even the date i purchased the computer:( I seem to have trouble accessing web sites as captions comes up saying “sercurity certificate expired/not yet valid”:( I have tried re adding but though wizard accepts as ok access to web sites still not happening?! Can anyone advise dell support line close to uk till monday any advice will i have to pay for new sercurity certificate to actually get straight onto online web sites?

Why Is My Computer So Slow At Certain Web Sites, But Not At Others? Is It That Web Site Or Is It My Computer?

Web pages like yahoo, my bank’s web site, and a few others load real fast without problems. However, when I try to go to my school’s online course web site it takes a long time to load up and when I go to places like cnn.com, beckettmedia, it takes a long time to load on them, too. I tried restoring my computer to an earlier date, when there was no problem, but now that problem is there. Any suggestions?

Would It Be Considered Cheeky Or Selfish If I Told My Brother That The Only Way He Can Use My Computer Is…?

If he lets me practice driving on his car to get a license to get a job?
I’m VERY, VERY sick of him! I have anxiety & nervous breakdowns EVERY night b/c of him.
To make a long story short, our whole family has had issues even before I was born. I was in a life or death crisis last yr., & he sent me from NY ALL the way to TX, just to use me to pay ALL his bills. I didn’t know he was gonna do that to me, since he never spends time with family members. I didn’t ask to come down here. He URGED me to come down here. I almost died last yr., & he didn’t care. Well, I got tired of him misusing, abusing, & enslaving me, so I got my own place. He got mad b/c I didn’t want him taking care of me. He thinks I’m retarded. But I have my 4-yr. college degree.
We didn’t speak for a while. He had a computer with internet access. When he came to my house & saw me online, he INTENTIONALLY turned off his internet service, just to freeload off of mine. It’s clear that he can’t STAND me & that he hates my guts. He snoops through my private files & webpage history IN FRONT MY FACE! & when I tell him about it, he wants to blame it on my OCD & saying I’m starting my s#it. & he also tries to hack my acct. passwords, & he floods my computer with viruses & trojan horses with those gay sites.
He even told me to my face that he doesn’t give a damn about me & that he wishes I was never born. I tried to talk to him about this, & he got hostile. I was intimidated. He is THAT desperate to throw me off my OWN computer, just so he can try to control it & take over it. He’s a control freak. He wants to try to control everything. He’s been driving for over 20 yrs., & STILL has poor driving skills, & he’s a wreckless driver. Now, when I drive the SPEED limit, he wants to try to tell me to slow down. This was when I had my car yrs. ago. & when I drive 5mph below, he says I’m gonna get a ticket for driving too slow. He does that on purpose, just to try to throw me off the wheel of my OWN car, so HE can be in control & drive. He’s a VERY poor driver.
Now, here, I’m trapped in a racist, small town with no jobs & hardly any transportation. He kept yelling @ me for not moving here. He recently confessed to me that he thinks Dallas is the best place to be b/c that’s where all the gays are. I’m not a lesbian. But he tries to call me a dyke. I can’t FORCE a man to date me. I just stay single & to myself. I have social anxiety.
I HAD a license, but they said that I had to take the driving test process ALL over again since I was a new resident. & damn near every job requires you to have a license & insurance, here. I’m very stressed because I have no way to get a license again. He has me feeling trapped here. I have no money to move.