Hello people! I downloaded this caster assembly from the Sunnex website, however when I attempt to insert the assembly into my main machine assembly I receive an error from SWX: "You cannot insert a document template into another document." I also noticed that if I open the assembly by double clicking it from the MS Windows explorer, the filename inside SWX is blank! I have a copy of the assy & files here: [URL]http://www.civision.com/customers/Dave/SW3DPS-SLC-600P-DEFAULT.zip[/URL] The zip file was downloaded from here: [URL]http://www.sunnexonline.com/mounts/casters.htm[/URL] Thanks! Dave SWX 2005, SP3.0