Actually, you can solve this problem for all of your pages in your base pageframe class. 1st, create a line object named linPageRefresher with code in the following methods as follows:

Init:
This.BorderColor = This.Parent.BackColor

UIEnable
LPARAMETERS lEnable
IF lEnable
This.Parent.Refresh()
ENDIF

Then in the init method of your pageframe class add this code:

FOR lnI = 1 TO This.PageCount
WITH This.Pages(lnI)
.AddObject("oRefresher","linPageRefresher")
.oRefresher.Visible = .T.
ENDWITH
NEXT