A couple of days ago, I booted up my XP Pro x64 machine, which I'd used just the day before with no issues, and found that the desktop and all programs I tried to run from it had a deep pink cast, and the other colours were all screwed up too.
I know this can be caused by issues with the video card or monitor, but I don't think that's the problem here. For a monitor, I use a TV, which is connected to the computer via a HDMI cable, and there's nothing wrong with the colour balance on the TV using other inputs, or even another device (Blu-Ray player) on the same input as the computer is normally connected to. As for it being the video card, when the computer boots up, the colour balance on the Windows splash screen seems OK, and the cast begins when it goes to the log-in screen.
Just on the off-chance that it was the video card driver, I reinstalled it with a fresh download of the most up-to-date version, but that's not helped. Neither has restoring Windows to a date a couple of days before the problem began. I've also tried a different HDMI cable, which I know is OK, and that's not helped either.
I certainly didn't change any settings or install any new software, so it's a mystery to me why it's happened. It does seem like it's more a problem with Windows, rather than a hardware issue, but what and why?...
So can anyone tell me what's happened and how I fix it?
System spec:
Dell Optiplex 780 SFF
Intel Core 2 Quad 2.2GHz
4GB RAM
1TB SATA HDD
Nvidia GT 710 2GB
Windows XP Pro x64