Using MaximDL demo and I can run the Atik and Orion SSAG just fine, but only if they are the only connected camera. If I have either the Atik or the SSAG as the only camera setup, they work fine. What occurs when both cameras are connected is that the software will hang after an exposure, no image is downloaded, and the status says "Reading" or sometimes I'll get a runtime error and Maxim shuts down. It doesn't matter which camera I try to use, which is camera 1 or 2. I've tried both the Atik plugin and ASCOM drivers for the Atik camera as well as the plugin and ASCOM driver for the Orion SSAG and various combinations of threading. Ascom platform is version 220.127.116.1127. Atik drivers downloaded from Atik site in the last week. Ideas? Thanks.