cgx 4.3 is supposed to be better...but heh anyway p96 is easy to install..
but still you need to remove all cgx files from your setup (system files anyway) , infact i had so big probs with that (not getting cv64 to work with cgx) that i formatted the hdd and sold the card

(common probs, just stops while booting , system dont open in rtg ec)
its a pain...escpeciially when it happened when i was offline for 2 years -;(
cheers
pps:i use p96 still now after so many years..i love it...its easy and manageble..