>Is there a way to change colours of grid boxes at random - not just the column colour? I need to write an appontment module that reps different appointments
>in different colours in a grid? If so is there an easy way to tie the colour to a table field value?

You would have to use DynamicBackColor property for the column. You may set it to thisform.MyColor(myTable.myField) and create a form's method, which would return a color based on field's value.