Black Screen - 2

[Federico Spinazzi]

I'm sorry to have asked the bad question: I had a post-it attached above the
display led, so the screen becames black ... because the display goes
offline (sort of: the led becames orange from green ...).

I've currently an 1200x768x256 resolution, no virtual display under NT 4.0
(does it matter?).
I would like to ask what I've to try out in order to avoid the terminal
going offline.

Many thanks.