I am using the results generated from a function as the control source for a column in a grid. The grid displays the correct values but when I scroll the grid while positioned on any field the behavior is very erractic (movement among records is difficult) plus the calculated field (one using the function as source) is sometimes highlighted. When I use the vertical scroll bar everything seems okay but the moment I give focus to any column field I get the funky behavior. The function code is listed below I would appreciate any help to alleviate this situation.

FUNCTION get_stat
PRIVATE PASS
PASS = SPACE(10)

SELECT REMAIN
SET ORDER TO MOI

RMN = .F.
IF SEEK(AMBORD.MILLORDER + AMBORD.ITEM)
RMN = .T.
ENDIF

SELECT AMBORD

IF AMBORD.LOADIND = 'Y'
IF RMN
PASS = '**LOADED'
ELSE
PASS = 'LOADED'
ENDIF
ENDIF

IF AMBORD.LOADIND = ' '
IF RMN
PASS = '**UNLOADED'
ELSE
PASS = 'UNLOADED'
ENDIF
ENDIF

IF NOT EMPTY(AMBORD.ASHIPDATE)
SET CENTURY OFF
IF RMN
PASS = '**' + DTOC(AMBORD.ASHIPDATE)
ELSE
PASS = 'C ' + DTOC(AMBORD.ASHIPDATE)
ENDIF
SET CENTURY ON
ENDIF

IF LEFT(AMBORD.MILLORDER,1) = 'X' AND AMBROD.LOADIND = ' '
PASS = 'BY ' + LEFT(AMBORD.RECV_BY,5)
ENDIF

IF LEFT(AMBORD.MILLORDER,1) = 'X' AND AMBORD.LOADIND = 'Y'
PASS = 'LD ' + LEFT(RECV_BY,5)
ENDIF

RETURN PASS