Hello greg.
>> I'm trying to move the cursor from column3 to column6 in a grid after a valid. This code,thisform.grid1.activatecell(thisform.grid1.activerow,6), seems to be the way to do it but it's not working. <<
Try this in the KeyPress of the textbox in column3 instead:
IF INLIST( nKeyCode, 9, 13 )
This.Parent.Parent.Column4.SetFocus()
NODEFAULT
ENDIF