Hi all. Another problem with Celestron ADV GT Mount and ASI AIR, please help me : it seems that, after last firmware upgrade, autoguide with 60/240 and asi 120 camera with asiair doesn't work. After autoguide procedure starting, asi app doesn't complete north step, south step ecc .. and says that stars don't move enought. I Repeat the procedure far from northern pole and the result was the same. I try to change milliseconds parameters; I check the fast impulse (with the cursor at 1x speed) on main camera to check the mount mouving (someone said me that the issue could be absence of fast impulse) and mouving is correct. Without traking selected by asiair on the mount, asi completes the procedure but the RA e DEC graph is very strange : simmetrical and doesn't guide. I'm afraid that there is a conflict between mount tracking and ASI autoguide input. TKS for suggestion.