System goes to sleep when switching from HDMI to DVI

[fozzybear]

OK, I've just bought Lite On internal Blu Ray player.

Now, when I have both HDMI and DVI connected, when I switch from HDMI to DVI my screen goes in sleep/power saving mode mode and won't come out of it.

I haven't a clue how to sort it. Any ideas?

Motherboard is Asus M4A785TD-V Evo.

 

[fozzybear]

Also, when I'm connected HDMI to HDMI the desktop is too big and overlaps. This leaves the task bar partly off the screen altogether. The res is set to 1920 x 1080 but the desktop doesn't appear on screen.

Oh ffs, why did I bother? I knew I should have got a standalone blu ray player.

I don't see the point if I can't display 1920 x 1080 on screen. When I do play a blu ray, Power DVD 9 cannot fit on screen either! I've had to reduce the resolution to 1776 x 1000.