Satellite M30, Screen stays sometimes nearly black after start up to several minutes

Satellite M30, WinXP
Sometimes, the screen stays very dark, what means that you can see a tiny little bit the startup info in the background and also the windows desktop, for up to 2 minutes before suddenly becoming really lit.
Not even the latest BIOS update did a change. And what is bizarre is that it appears not always. A non-stop start-and-shut-down-sequence showed that it appears about 2 out of 3 times.
What could be the reason?

Hi LeTom,
did you use the toshiba recovery os or a own installation?
It seems that the Display has a defect, so here are some questions to play it safe!
Did the failure occure also when the red Toshiba logo is shown shortly after starting to boot?
If you use a own OS installation, you should do a complete new installation with the Toshiba recovery CD (be carefull all data will be lost, make a backup).
Then the notebook is setted back to software default settings and if the failure occures yet, you should check up the hardware by a Toshiba service partner!
I think the M30 is still under warranty!
Bye Pelox

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