Thanks for all the helpful replies.
The thread ivan mentions could be relevant. The poster in that thread solved his problem by copying over the contents of \os2\etc\dsom from a working system. So I installed SS on another system, found that it worked fine, backed up the directory, copied the "good" ones over, and rebooted. The problem persisted, so I put it back and rebooted again.
Also tried what Lars suggested there, installed the developer's toolkit and ran pregimpl.exe, to see if it fails. It opened ok, wasn't sure what to do after that.
Sander:
LTUIR22.DLL is indeed in D:\LOTUSW4\COMPNENT, and LIBPATH looks OK to me:
LIBPATH=.;D:\LOTUSW4\COMPNENT;D:\LOTUSW4\ORGANIZE;D:\LOTUSW4\APPROACH;D:\LOTUSW4\123;C:\IBMLAN\NETLIB;C:\MUGLIB\DLL;C:\ECS\DLL;C:\OS2\DLL;C:\MPTN\DLL;
C:\IBMCOM\DLL;C:\IBMGSK50\LIB;C:\IBMGSK40\LIB;C:\IBMGSK\LIB;C:\TCPIP\DLL;C:\OS2\MDOS;C:\;C:\OS2\APPS\DLL;C:\EMX\DLL;C:\PRTUTILS\MARKVIS;C:\JAVA11\DLL;
C:\MMOS2\DLL;C:\MMOS2\FREEDB;D:\WATCOM\BINP\DLL;C:\TOOLS\System\dll;C:\SDL\SDL;D:\LOTUSW4\FLG;D:\LOTUSW4\WORDPRO;D:\LOTUSW4\COMPNENT\FLTERS97;
D:\OS2TK45\som\common\dll;D:\OS2TK45\som\lib;D:\OS2TK45\dll;D:\OS2TK45\samples\mm\dll;
None of the files you listed are 0 byte or 32 bytes:
5/21/97 11:59a 106,656 0 a--- approach.ir
8/06/96 9:27p 5,271 0 ---- flg.ir
0/23/01 7:15a 223,215 0 ---- l14som.ir
3/03/99 4:10a 154,584 0 a--- ltolso20.ir
2/23/00 2:31a 332,629 0 a--- ltscto39.ir
2/23/00 2:26a 119,850 0 a--- ltsomo10.ir
2/23/00 2:41a 78,578 0 a--- ltsrxo20.ir
6/03/97 4:00p 10,020 0 ---- organize.ir
2/10/97 11:21a 31,248 0 a--- wpsc2.ir
9/06/00 12:42p 66,058 0 a--- REXX.IR
6/30/99 4:28p 496,503 0 a--- SOM.IR
10/02/01 5:44p 60,855 0 a--- WPDSERV.IR
10/02/01 5:35p 274,823 0 a--- WPSH.IR
I took your suggestion regarding my address.
I guess I could try putting some more time into comparing pregimpl.exe on the two systems.
If I am to switch to another application, I would seriously not choose another Lotus one, except maybe an older version of 1-2-3, if I can find one more native to /2.