In a message dated 96-12-21 18:11:34 EST, you write:

> The only thing that seems to make a
>difference is how much I load the ports.  If I only fire a few of the LED's
>at once they seem to lock up a lot less frequently (they still lock up
>sometimes).

It sounds like you should check that your power supply and decoupling are
still in good shape.

Mark A. Corio
Rochester MicroSystems, Inc.
200 Buell Road, Suite 9
Rochester, NY  14624
Tel:  (716) 328-5850 --- Fax:  (716) 328-1144
http://www.frontiernet.net/~rmi/

***** Designing Electronics For Research & Industry *****