VFP 5

1. A data entery form is displayed.
2. From the menu one of several seach forms is called. Form is modal.
Double clicking on an item in a grid.
a. search for desired item
b. moves the pointer for table displayed in data entry screen
c. refresh the data entry form to show new data

This all works except that that it appears as if data entry form is displayed more than once is is shifted slightly down. This makes it blurry. An clues to what is happening and how to fix it would be apprciated.