This is my first post to the list, so please bare with me.  I have an old
486/66 machine running Windows 3.11 to which I recently tried to add some
memory.  After doing so, I ran setup, the additional memory was sucessfully
recognized, and the system passed the POST.  However, upon reaching the
"Starting MS-DOS" screen, the system just hangs.  Pressing F5 or F8 does
nothing except cause the internal speaker to hum, and it won't recognize a
bootable floppy in the A: drive (I tried different boot disks).
Incidentally, the system ran fine prior to the memory swap, and I have tried
putting the original memory back in, and the same symptom is present.  I
have also tried reseating ribbon cables and the IDE controller card,
thinking that perhaps something had been physically disturbed.  Any
suggestions or comments would be greatly appreciated.  Hopefully I have
provided sufficient information.

George

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