thks for the reply and yes I have revert to 10.0 official but I am facing the same display problem, but now it's different.
First , I went thru the sticky post at the begining of this forum and did all the steps suggested. I installed the latests Nvidia drivers 1.0.6111 but could not install due to some kernel mismatch. then I installed the previous release, install went on well, edited the X86Config-4 file with the necessary inputs , now, the screen blinks 2 -3 times during booting and then I come to text mode...! no GUI...!
I am quite lost now after a couple of days of going thru the forum and doing all that has been suggested, even did a clean install again....! still the same ! thinking of changing over to another distro....