Hello, I installed 9.3 on an HP ZD7000 laptop about a week ago. (I previously had 9.2 on the laptop for about 2 months with no problems.) Apart from several annoying problems with Gnome, 9.3 seemed to be working fine. This morning I tried to reboot the laptop. But the laptop will not boot. It gets midway through the boot process and it shuts itself off. I've tried booting the laptop 5 times, but the same thing happened each time. Before the boot process stops, I notice messages indicating that the "filesystem is not clean". How can I diagnose/correct this problem? Is there a way to determine if this if my system got corrupted or if this is a hardware failure? If the system is corrupted, can I fix it without re-installing? Thanks very much. Dom