Solution : https://service.sap.com/sap/support/notes/316024 (SAP Service marketplace login required)
Key words :
additional key words columns column headings scroll ----- supportguide 20010411083319 -----reportwriter, sgrw_docu_cons_notesgrw_om sgrw_ps sgrw_pc sgrw_sl sgrw_pca sgrw_ec sgrw_lis, column headings disappear, scroll back, changed function, screen display, program behavior, sgrw_scroll, sgrw_upgrade, prerequisites
Related Notes :
357585 | Report Writer: page headers missing when scrolling |
352824 | Composite note 'scroll' |
156232 | As of Rel 4.5 Report display: functions changed |