[pgs-rg] Corrected link

[Laura F McGinnis]

Thanks to Valeria for pointing out that ths link to the presentations from 
yesterday was broken. I have now fixed it, so you should be able to get to 
the talks now.

thx
LM

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Laura F. McGinnis, Project Coordinator
Data & Information Resource Services
Pittsburgh Supercomputing Center                      email: lfm at psc.edu
4400 Fifth Avenue, # 409D                                  voice: 412-268-5642
Pittsburgh, PA  15213                                           fax: 
412-268-8200
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