jal@valhalla.ee.rochester.edu (06/17/88)
I have found a really odd bug in a program of mine when running on a PC (floppies only) under DOS 2.1. The program runs fine under DOS 3.x and works under DOS 2.1 if a Microsoft Mouse is attached. If the mouse is not present (no mouse driver) the code hangs up on a Disk write (Int 21h, functions 40H). This write immediately follows an LSEEK. There is a prior Write which works fine. Does anyone have any ideas as to what the problem might be? - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - I program ... therefore I am. John Lefor University of Rochester Dept of E. Engineering 716-275-8265 jal@ee.rochester.edu ...!rochester!ur-valhalla!jal