Hi, I'm Robert and I'll be helping you with your financial software question.
Probably you are going to have to load a backup copy. It sounds like one of the sections of the data file is corrupt.
You can try the downloadable standalone repair tool but if that wont do it I would suggest restoring a backup as your best alternative
You can download it from this page
The data files were OK. I was trying different things and fixed my problem. Under the View menu the multiple windows option was selected. I selected the One Window option and presto. There it was!! I do not know why it is only the customer centre window affected by this option.
So I have done some further checking in another company and the view setting there is set to multiple windows and the customer centre works fine with other windows, vendor, payroll, etc.
Also in my problem company I tried opening other windows, payroll centre, vendor centre, etc. and all can be open at the same time and display fine, only customer centre is affected and needs to have the one window setting to display correctly. So perhaps it is a data file problem although the integrity check says all is fine. I will not risk running the repair tool and just use the one window option.