Kai,
There is a series of posts about this at the DUO2400 list in regards
to the greyscale Duos. I have a 280 myself. I think that the final
conclusion seems to be that no one over on that list knew what causes
the darkening screen other than guessing that it's just due to age. My
280 takes a little longer than your 540 but eventually it looks like
one of those old, almost round, TV screens from the early fifties. You
have come to the same solution that the Duolisters did. Shut it down
for awhile and the problems goes away.
Try this link (you may have to paste in back together) :
<http://www.mail-archive.com/cgi-bin/
htsearch?method=and&format=short&config=duolist_lists_themacintoshguy_co
m&restrict=&exclude=&words=darkening+screen>
hope this helps,
Randy
On Tuesday, Mar 25, 2003, at 07:34 US/Central, Kai Steinmann wrote:
> So when it's running for
> maybe more than 2 hours i have very ugly dark spots (about 1/2 inch or
> even
> more) at the edges. To get a blank screen again I have to shut
> power-down
> the notebook for at least half a day or more.
>
> Does anyone know what I can do to get rid of this problem? Or has at
> least
> anyone else encountered this problem?
>
>
==================================================================
Design is an iterative process. The necessary number of iterations is
one more than the number you have currently done. This is true at any
point in time.
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