crwdns2934241:0crwdne2934241:0 lemerise
crwdns2934249:0crwdne2934249:0:
Did you try to boot from another OS, from the installation disk or from an external hard disk ? If you then get a constant backlight you know that the issue is software related and you'll need to reinstall the OS on the internal drive.
crwdns2915684:0crwdne2915684:0:
open