I have a client using an access DB that I have built. It was built using Access 2000 and he is running it on Access 2003. The problem is that when he opens one of the forms which is tabbed and he moves to the second page when he moves the mouse pointer over some hyperlink buttons the background colour ,which is normally blue flashes to yellow. Every other user working with 2000 does not have this problem. I cannot find the reason. Can anyone help please?