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                                                                  Exhibit 23.3
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                      CONSENT OF INDEPENDENT ACCOUNTANTS

   
We consent to the inclusion in Amendment No. 1 to this registration statement 
on Form S-3 (No. 33-10663) of our report dated June 12, 1995, on our audits 
of the financial statemnts of Spider Systems Limited.  We also consent to the
reference to our firm under the caption "Experts."

/s/ COOPERS & LYBRAND

Edinburgh, United Kingdom
August 23, 1996