If the screen does not function properly for the current mode of operation, do the following steps:

1. Review the SVC 94 entries to determine the mode.The STFSMODE and STLINENO macros set full-screen mode on and off.
   • Full-screen mode.

     In full-screen mode, the application handles screen management.

     If the problem relates to full-screen processing, review the information on full-screen mode. See Table 1 to determine what document describes full-screen mode. If this does not describe the full-screen processing that you are experiencing, note the differences.

   • Line mode.

     In line mode, TSO/VTAM handles screen management.

     In line mode, the data generated by the application program is placed line by line down the screen. READY appears on the line below the data, and the cursor appears on the line below that. When the screen is full, TSO/VTAM sends a page prompt to the screen. When you press the ENTER key, TSO/VTAM clears the screen and sends any remaining data to the screen.

     If you enter data on the next to the last line of the screen, no page prompt is sent. Instead, TSO/VTAM clears the screen and reshows the data (or command) at the top of the screen.

     If this does not describe the line mode processing that you are experiencing, note the differences.

2. Report to the group (TSO/VTAM or the application program) that appears to be responsible for the incorrect screen management.
   • If you have access to IBMLink, search for known problems in this area. If no applicable matches are found, report the problem to IBM® by using the electronic technical report (ETR) option on IBMLink.
   • If you do not have access to IBMLink, call the IBM Support Center at 1-800-IBM-SERV.