>I have a LCII with was working fine days ago. But now, when I turn on, 
>only I can see is a gray screen (not the normal screen with a floppy disk 
>blinking looking for the operating system). 
>
>What is this problem?

Possibly a dead PRAM battery.

On many of the Macs, when the battery goes, the video goes or the whole 
machine fails to boot.

-chris
<http://www.mythtech.net>