I finally got it to boot on my 4k samsung. Not 4k resolution, but 1920x1080. I had to go into devs, monitors and go into info on the readeon preset and commented out the 2560 resolution and just have 1920x1080. One battle at a time, but I finally got it on the monitor I wanted it. Now I have to go through my list and figure out a whole bunch of weird things I'm not used to in 4.1 fe.. Thanks again.
i'm planning on giving 4K another shot this weekend with the updated RadeonHD driver included in the enhancer software bundle from A-EON. i know it's worked in the past, though, since we had 4K running at amiwest last year.
-- eliyahu