computer down

What is the program that you "End Task" on? Make a note of it.

First thing I'd suggest is try starting the PC up in Safe Mode - Shut down (with Ctrl+Alt+Del). Turn it back on, and whilst it's booting up, hold down the Ctrl key (may be a different key - possibly F4 - on some PCs). It will give you a list of options - choose Safe Mode.
When Windows boots up, you should have your icons and Start button back, but your display will be messed up (don't worry about this!).
Go to Start, Run and type msconfig. When the System Configuration window appears, click the Startup tab on the far right.
This is a list of all of the programs that automatically run when you turn your PC on. You can uncheck the box of the program that was causing you a problem, then click OK.

Restart your PC as normal and hopefully your problem will be solved.
Reply to this thread to let us know how it goes. If you have a lot of programs in that Start Up list, you may want to post them here and we'll help you identify those you need and those you don't.

Gram

This question should probably be in one of the Windows forums, not Business Apps, if someone wants to move it!

If it were me, I'd get rid of webscan explorer. Unfortunately, webscans cause me problems all the time.

Start-Run and type:

msconfig

Hit Enter.
Click on Startup tab.
Uncheck Webscan explorer.

If it's windows 95, then it's a registry edit probably, but you might be able to remove it from C:\windows\start menu\programs\startup.

Vsstat belongs there--it's the virus checker. Webscan probably is too, but, like I said...