I use LID = None or # out the line in acpid.cfg, because I do not
want anything to change when closing it (especially since S3 doesn't work).
Closing LID causes huge amount of LID events to be logged in acpi.log and
acpidaemon.log
After trying to start the acpidaemon.exe manually without getting a trap, I removed the "rem" before the "RUN=D:\OS2\CMD.EXE /C D:\OS2\ACPIDAEMON.EXE" in the config.sys and now it works too!
Willibald will try the same with his T60 and will tell me the result!