@tech@zwo#41820 I have the 2600 and a 290MM Mini for guide camera that works fine. I have a MAC but my new ACER laptop is the one I must use. What frame size should I test to get you the fps value? Do you want me to test at full size, uncropped? Did your Facebook person send you the images from the three programs that all will not download? I tried to upload JPGS to this forum and your system told me I had to upload JPGS, which I was doing. Is there an email address I can send them to so you can see what the problem is? And what could possibly be wrong with the laptop when I can do a preview in all three programs but when I actually try to capture the data to the hard drive it fails. Why would this occur? The USB connection is fine and the power supply is fine...