If you knew the date I could get it. Poopli seems to have a big list of Screen Savers show, but no year markers so searching randomly is difficult.

*edit*

Ok, the two shows I found with GDC in a search are 3/9 and 3/15. I have a request out from 3/9, but with no year in Poopli, it could be 3/9/04.