The computer will power up, the windows loading screen comes up but after that the screen just goes black. you can tell the screen is on but completely black.

Your Operating System maybe corrupted. If you have the installer that it came with (usually a CD), you may need to use that when repairing. Your computer should extract the missing/corrupted files from the installer

hmm ok try this

restart computer with F8 pressed down and see if it goes to SAFE mode

if it does report back

This is a hard drive issue, remove hardware and reseat it back into place, sometimes this will work and run fine. But it is more than likely your hard drive will need to be replaced.

there might be a problem with the video cable.borow a cable from a friend and try it.it will work

Had a similar problem like this several times. Try choosing safe mode. Safe mode will load the required drivers. After safe mode finishes the loading process, restart your computer and choose to start windows normally. The problem you mention usually happens when the computer is turned off without using normal shut down procedures. Also happens when you have a sudden power outage.

Try going into safe mode upon startup by hitting the F8 button. If it does then hit safe mode to get into your computer. Go to start>accessories>system tools>system restore. Follow the wizard to restore your computer to a date earlier than when you started having problems. Let me know if you have any problems or questions.

From what you say, I'll assume you see stuff on the monitor like the BIOS info,and the Windows splash screen. Then it goes black.
This happens when Windows loads the video drivers for your video card. Up until that point, you are using generic VGA drivers. I would guess the drivers are corrupt and the video card just stops working when it tries to access them.
You'll need new drivers for your card (you'll need to determine that--you can ask me directly by clicking on my name if you need help there). Then you'll need to start your computer in safe mode and remove the video card from the device manager. Depending on the directions you have for your video card, you may have to tell the computer not to install drivers when you restart your computer, but run the install program first.

the easiest solution would be to re-install windows and hope it is not a hardware problem

Sorry to have to tell you this, but this is common in LCD monitors. The reason that it is going black when it boots is for one of two reasons. You either have a bad power supply that powers your LCD or your LCD's backlight is blown. These can be repaired or you can purchase a new one. But if it goes black 9 times out of 10 is because the backlight is bad. These can be repaired!

Be more specific. I guess your monitor has inbuilt speakers which are making noise. If yes do come back for a solution.