The power is coming through, but the green light doesn't come on so I can't use the computer. I seems to be in permanent sleep, or hibernation mode. How do I fix this please.
I could be a power supply problem, or possibly corrupted OS.
Vista recovery Optionshttp://windows.microsoft.com/en-US/windows-vista/What-are-the-system-recovery-options-in-Windows-Vista
Do you use sleep/hibernate/standby on a regular basis ? I have never been in favor of using of it, as I have seen many many issues like this.