have a HP laptop which has worked fantastic for four years. It never goes on the internet as it is used purely for performing. It gets connected to an external moniter. However, when connecting today the moniter has become very strange in colour albeit readable but has a green tinge. I have tried connecting the moniter to another laptop and this works fine with the correct colour. Could it be the settings on the old laptop even these have never been touched. Any advise would be appreciated
More likely hardware (integrated graphics) problem.