My daughter has a Dell Inspiron 1545 with windows vista. The other night, the electricity went out and I guess came back on while we were sleeping. She turned her computer this morning and it would load to the operating system. It got past the logo screen to the shut down improperly screen where it gives the options of repairing or starting normally. Either option causes it to reboot again. None of the options in the advanced boot screen helps nor in the f12 menu. The odd things is that sometimes before it reboots you can see a flash of a blue screen. Anyways, I'm not sure what this means. We are on vacation and I don't have an installation/boot up disk with me. But I can send for it. I guess I am just wondering if there is anything else I can try.