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The page http://mame32fx.altervista.org/forum/viewtopic.php?f=1&t=205&view=previous&sid=1ff58d06df48f4aacd429bf4f9047d0c was not found on this server.

This can be due to:

Pay attetion to UPPER and LOWER cases
http://site.altervista.org/Page.html is different from http://site.altervista.org/page.html