Hi I have a grid the table for which contains about 30 entries - each entry comprises 5 records of which the last 4 are for info purposes only

Entering data in a designated column on the first line of each entry performs a series of calculations and put the answers back on different columns of the same entry line - it then skips down to the first line of the next entry

Often the operator uses page down to bypass some entries - this appears to cause the grid to page down and page up again although I can' t reproduce the fault on my machine

Are their any no nos with paging down a grid or any keys which should not be in action eg the insert key?

Any ideas?