External screen dims when opening different apps?

Hi All ----
Seems my external screen dims and rectifies when opening different apps - like some kind of brightness adjustment going on... it doesnt happen on the MBP, just on the external screen --- i've checked all possible settings on Ext. Displ. / re-booted / repaired perms... cant quite figure it out.
I dont think this is energy-saver related.
Many thnx for any help in adv. ---
cheers,
J.

The problem with that is, it's hard to put it back together without assuring that you're not pinching the cable again.
Instructions can be found here.
As he says, the cable can be found at Small Dog Electronics:
http://www.smalldog.com/product/43417
If you need replacement feet, they can be found at MicroDoc.
The specific link you need on PowerBook Tech's website can be found here.
If it looks like too much for you to handle, you may want to check out DT & T Computer Services. Perhaps in a metropolitan area like Austin you can check the Yellow Pages and find a technician willing to match the price.
At one point, DominionTech in Colchester, Vermont was offering the repair for $79.90, but I'm not sure if that price is still available.
Good luck.

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