PK> A later fixpak for Warp 3 added a facilty to better manage what is 
 PK> called "Single Input Queue" lockups. 

*Synchronous* Input Queue.

Repeat after me:

        "Presentation Manager is multithreaded, always has been, and has
always
         had multiple input queues, one per application thread.  Presentation
         Manager is multithreaded, always has been, and has always had
multiple
         input queues, one per application thread. Presentation Manager is
         multithreaded, always has been, and has always had multiple input
         queues, one per application thread ..."

It's the fact that raw input is taken synchronously from the mouse and
keyboard into the various *multiple* application message queues that is the
problem.  If it were taken asynchronously, there wouldn't be a problem.

 ¯ JdeBP ®

--- FleetStreet 1.22 NR
114/477
143/1