Hi All

I have found the issue. If there is an ON ERROR in effect then RLOCK() will just return .F., if the record cannot be locked, without any message on the status bar. Interesting that the ON ERROR routine itself is *not* actually called. It is simply a case of if there is an ON ERROR defined that affects the behaviour of RLOCK().

Repro:

ON ERROR X=1  &&  <= comment/uncomment this line to create/hide the status message "Attempting to lock..."

USE myFile SHARED
GO TOP
? "Instance #1"
? RLOCK()
=INKEY(0)

Thanks to all.