Display keeps turning off

Hi, I'm having a problem with windows 7. Recently my home built HTPC running win 7 home premium x86 began having display problems (it was connected to my plasma via HDMI). The display would flicker, turn off, turn back on, turn back off etc. This got worse untill it mostly just stayed off. I replaced the graphics card but the problem persisted. I reinstalled windows and after a day or so the problem came back. So, I went all out and built a new shuttle HTPC with all new components, and installed win 7 x64. Where possible I used alternative applications (cyberlink burn2go instead of nero, powerdvd10 instead of media player classic etc.) After 2 days yet again my display turned off!
Is there a problem with a windows update that could cause this?
Surely I can't be the only one?
Please help,
Spence Newman.

That happened to me too. Was just a loose connection in my case.

I hate to ask such an obvious question but have you replaced the cable connecting your monitor to your tower?

BugOutMachine said:

I hate to ask such an obvious question but have you replaced the cable connecting your monitor to your tower?

The obvious questions are usually the best ones! Yes, I've tried another cable, with no joy

I'll try my mates tv tomorrow!

Excellent! Please keep us posted as we want to make sure you get this situation resolved as smoothly as possible

Well, after a lot of time and money I have finally sorted the problem.
The HDMI input on my TV is failing. I have now connected my HTPC to another HDMI input and (as if by magic!) the problem has gone.
Thankyou all for your help.
Yes, I do feel quite embarrassed!

I'm really glad to hear that you resolved your issue and hope that you stick around SevenForums! You never know when someone may have a question that you can answer