Just received the error below. I was using the field properties panel to change the vertical position of a field. I think I entered a bad number (2.88.1 or something like that). Version 4.0.2.9564.

D:\Program Files\DataFlex Reports 2014 Developer Edition - 4.0.2\DataFlex Reports 2014 Developer Edition.exe
Bad format of expression (operator)

Error: 52

MSG_ONCHANGE (4487) - oY (966) - at address 142470
MSG_COMMAND (648) - oY (966) - at address 77892
MSG_ONCOMMAND (6068) - oCommonPage (958) - at address 13906
MSG_CREATE_DIALOG (711) - oFormatField (956) - in native code
MSG_CREATE_DIALOG (711) - oFormatField (956) - at address 1179
MSG_ACTIVATE (117) - oFormatField (956) - in native code
MSG_ACTIVATE (117) - oFormatField (956) - at address 1947
MSG_POPUP (290) - oFormatField (956) - in native code
MSG_POPUP (290) - oFormatField (956) - at address 148251
MSG_ONCLICK (4637) - oFormatItem (2832) - at address 170094
MSG_ONCOMEXECUTE (7675) - oCommandBar (2072) - at address 110983
GET_INVOKECOMMETHOD (1374) - oDispatchDriver (2829) - in native code
GET_COMSHOWPOPUP (7980) - oFieldPopup (2828) - at address 61626
MSG_POPUP (290) - oFieldPopup (2828) - at address 111972
MSG_ONRBUTTONUP (10919) - oDesigner (3276) - at address 98882
[start] - at address 173076