Hey, I have my monitor hooked up through a VGA box to my PS3.
When I got back home yesterday I turned my computer on and it worked fine, I shut it down and went to use it this morning and it said no signal even though everything was starting up fine.
Out of interest, I tried it on my PS3, it works fine there, I have not touched any of the cables, however it has been cold and not used for a week and a half (normally I use my PC every day), so could the cold weather have played a part in it not working and if so, how?
I'm not able to open the case at all and if I did I have been reading taking out the battery doesn't always fix it.