well,i meant to upgrade to the RHEL kernel and its module ,libraries,headers if found of course but what i meant is there any issue with that i.e no piece of software work with that module or library>>etc, and the main problem is that i wanna take the RHCE and the best suggested OS is centos not fedora and i wanna run it on my laptop which i tried to do so with the centos 5.5 but there was so many miisings like the wireless card driverr and the display card drivers so i am back to fedora 14 which i am using now and i wanna run oracle databse over linux which has some issues with fedora! such a dillama??? i think i make a clear picture now! any suggestions?