thanks for your help.
What I meant by checking the cable is that I plugged and unplugged it - as you mentioned - and also pulled from it; a little bit of a "rough" move, I know, but you never know...
The problem with this monitor is that the cable for the PC connection is built in on the monitor side, so I cannot try another one. The cable for the electric supply works fine.
One thing I've come to notice is that the Scenicview monitor works if I start the PC using my old monitor and then switch monitors while the computer is running, but it won't work if i try to start the PC with it. żAny ideas why?
To be perfectly honest this goes beyond me, I'm no electronics buff, so I can only guess from here. If you have previously used the cable to pull or move the monitor (which I think you are saying) it is entirely possible that it has received some minor damage. This would suffice as one explanation for your problem. I imagine it might have something to do with the voltage/curren shorting out or similar during the POST test when you turn on the computer. However this is only speculation.
At this point I will have to hope some GTG staff who are a whole lot more exoerienced can help you. However, you may want to consider your warranty if its still valid (though it may be declared void if they suspect rough handling).
Sorry I can't be of more help.