Powered up my PC this morning to find it only displaying black and white! Was working fine up until now. I have a mini-ITX PC running Windows 8.1 with a MSI GTX 770 hooked up to my TV via HDMI. No changes to settings or driver updates since last power down. No obvious changes to colour/graphics settings that I can see. Tried re-installing the graphics driver, no luck. Definitely not the TV as the on-screen menu still displays in colour. Have I fried the card? It's a new build and I haven't been closely monitoring temps in gaming yet. Haven't tried another card yet, but wondering if it might be a software problem before I open the case.
Any help appreciated.