I don't know the details, but I remember hearing its related to buggy video card drivers.  Things that work fine on some cards cause this on others.  Check the archives for details, I think there are also a bug report that migh tbe related, if so, you should add your details there:

https://sourceforge.net/tracker/?func=detail&aid=1839973&group_id=64325&atid=507079

.hc

On Mar 26, 2009, at 11:39 PM, james murray wrote:

Common? Really?  Is there any sort of good explanation for this?  After testing it for a few hours it's definitely only occurring after I select restart and never happening when I shut the computer down and then restart manually.... I guess I'm curious about why this would be happening, and is there anything out there more informative than the pd forums for snafus like this?  I spent a good chunk of my day trying to find different ways to describe the error but could get no useful search results in there...

Thanks so much for the input Hans-Christoph, it's really appreciated, I'll give the workaround you suggested a shot in the morning and see what happens.

J

On Thu, Mar 26, 2009 at 6:49 PM, Hans-Christoph Steiner <hans@eds.org> wrote:

Yeah, its pretty common.  If you are using [pix_movie], try using:

[pix_film]
|
[pix_texture]

.hc

On Mar 26, 2009, at 1:18 PM, chris clepper wrote:

Need some more info:

Video card model, what the piece uses in GEM, does any other app have problems?  Maybe post a pic or video of the screens too.

On Thu, Mar 26, 2009 at 12:52 PM, james murray <james.n.murray@gmail.com> wrote:
Hello List....

I've got a two screen GEM piece running on Plasma displays that has recently started to, on reboot, begin flickering the GEM screen in a neon purple/green mode.  I'm wondering about whether the video card in my G5 tower is on the way out, and as a result, this glitch is occurring... It seems more prone to enter into this green/purple rave when the computer reboots, and less/never has occurred if we do a hard shutdown followed by startup.  Any ideas? Confirmations? Counter-arguments... this is a new one for me, and insight would be grand.

J

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News is what people want to keep hidden and everything else is publicity.          - Bill Moyers