Thanks for the update. I was not sure if the card could be flashed. On review my PCI/VEN is slightly different although the REV_24 is the same:
PCI\VEN_8086&DEV_088E&SUBSYS_40608086&REV_24
So maybe this is not the problem. Just feeling around in the dark a bit there. Again it seems driver related all the way, I suppose.
I know one thing - Fixing channels on APs is not much of a fix over all.
C-