I am experiencing very poor performance for my web users utilizing Lasso 8.5 connecting to FileMaker Server Advance 9 on Windows Server 2003. I would like to know if anyone has experiance running FileMaker Server Advanced 9 in two-server mode. And if so, what is the best hardware/OS on which to host the DB and worker engines...Windows/IIS or Mac/Apache? This is assuming similar hardware specs on the two configurations. My thought is to add a second server for the WPE to serve the XML to Lasso, but I'm not sure whether to go Mac or PC.