Boot problem?

Hi, my friend having a little problem with booting his PC.
At the end of boot he just get message about:
No Video Input
After he hit restart button boot is normal and there is no message – Problem is he get this message every day, and every day he needs to restart his PC…..
….One friend said that maybe the problem is with PSU – and that something needs to be charged??…..
How can I check what is the problem – can You recommend me some software or if you have some suggestions…..
Not sure about Specs – something like this:
Windows Xp
1GB Ram
Integrated graphic card (256MB) – not sure which one….
500GB HD
He just use his PC for Office and for Internet and that is it as I know.
Not sure if it is related but IT IS WEIRD – he start getting ERROR after copying some files (doc, pdf, some exe, nothing weird) to his partition – before he never used it – after copying next day this started.
It last for 1 and a half month….
Thank You.
Answer #1
Probably is the graphics card not properly connected or dust in contacts. You might want to disassemble the pc, clean the dust with compressed air and connect every card again. The problem should go away