On the monitor there should be settings button.
Look in menu for a rest.
Does it appear like you have lost a primary colour from picture?
Does everything you open look like this (like through a yellow filter)?
Have you another monitor to try? .. because that would really be the next step.
I have rest the colour on the monitor but it made no difference.
yes everything looks like looking through a yellow filter.
I haven't got another monitor to try, it seems like it is broken doesn't it
It does .. and it's unusual for graphics drivers or the card to give this problem.
It is a PC then?
Can you borrow any monitor from friend to try? Or even just a cable, if it is detachable from the monitor?