When I click on the colour palette, the red option has be replaced with grey.
When I hover over the new grey it does say that it should be red.

This problem occurs randomly, but the wrong colour once there will stay
untill I reboot. I use a lot of spreadsheet during the day, some of these
have been created by other people.

My assumption is that within one of the spreadsheets, there is some VBA code
that changes the colour pallete.

Does anyone else suffer the same problem?
Is my assumption valid?
Can anyone advise me on this problem?

Many Thanks,

Simon