Tom, Are the two TMG projects (one slow, one fast) located on the same disk drive? If a TMG project is located on a network drive, that slows things down. I haven't done that in a while, and I don't recall the details, but I do remember TMG was slower. Also, using a network path for a folder that is on a locally-attached drive will also incur some of the network overhead. If the project includes references to exhibits that are stored on a network drive, or to exhibits that don't exist, that will also slow things done. Check the Project preferences and look for any network paths. John