Check this out:
http://www.portegeclub.com/forum/vie...r=asc&start=15
The cab is at the last post: I'm gonna try it.
EDIT: Tried it out according to the install details in the post and while the pic is much improved the sound was gone. I uninstalled the 2nd part of the tweak leaving the certs cab in place. Soft reset always and I see the pic quality is still pretty good and the sound is back and sounds decent. Give it a try and see whatcha think.
I may try uninstalling all then reinstall with a sf install last and see if that helps. I think having sf on board first might have messed it up. Tomorrow's another day