Computer being strange?
962347
It might be a virus it's true but it could be also something else. For example if login requires javascript and that's not enabled you can't login\n\nBTW 300 bucks to fix that it's a lot lol I do that for my friends and don't charge them :)
945231
Could be a variety of things... check to see if the cpu is overheating... it may turn itself off to prevent damage.  I would take it back though, it's new, they should look at it for free.
20208
I would suggest you have a professional take a look at it. It could be anything.I have a feeling it's the motherboard,but don't take my word for it. Just have it looked at.If you've had it for a very long time over the years, chances are you might either need a new motherboard,or a new pc. I have a Dell Dimension 3000 and i recommend you buy yourself one if you don't wanna spend over $600 on a new motherboard
43910
Uo oh...Sounds like a virus to me. If you don't have anti-virus, get it. Two good freeware programs are Avast & AVG. Your anti-virus must be up to date too, new viruses as created every day, your software has to know how to recognize these viruses. I agree with the last fellow too, it could be an overheat issue, but I've never seen a PC recover from an overheat lock-up.
494405
Check all cable connections, mouse, monitor, AC power cord etc. sometimes they work loose. If everything appears OK, you may need to reload windows. Some viruses will do this by corrupting your program files. You can try a emergency disk, restart in SAFE mode, or just format the drive and reload Windows and all the drivers. I do this about every 3 months to clean out junk and corrupt files. You will find your PC runs much faster.
1033797
Your PC probably is infested with spyware . ls install and run these\nsoftware possibly in safe mode (f8 )\n\nGood Luck...
723668
It's your computer has a very slow processor speed, than that could be the problem.  However, it is more likely that you have a virus.
484015
theres somthing wrong with your computer
1168549
Yeah u probably have spyware running even if u dont want it. Im not sure, but try ctrl+alt+del, go to proceeseess, and see if there are any processes not running under SYSTEM, that seem suspicious. If you end a process, it will immediatly stop. Also, try searching your program files directory  and see if anything  got installed that seems suspicious.
843599
There might be some problem in your system,may be virus or some difficulty in hardware.The details you might know better.
69454
If you have some kind of antivirus or antispy software. I would suggest you run a scan. You could have something corrupting your pc. If you don't have protection, i suggest you get some.
634111
Maybe your computer is dumb
615523
There is a fan in your PC that cools down your computer since keeping it on all day will heaten up your hardware. It is probably defective.
982388
Sounds like its infected with a virus or spyware, I was once in this situation before here's a link that leads you to x cleaner, this online program cleans and tune up your computer  \n\n\nhttp://www.spywareguide.com/onlinescan.php
1177566
You have some problems.\nConsult a friend that has some knowledge about computer maintenance. Sounds like to me that you've been hijacked.
1024204
I think is a virus or spyware
590368
perhaps there's a virus. try having it checked with a computer technician.