great first go at jupiter g__day. The reason why you cant see the band around jupiter is because you have set gain too high. When capturing a bright object such as jupiter or saturn, lower the gain and offset level. play around the sliding bars. 0.2 second is abour right. Also , don't tick auto contrast, adjust the histogram manually but don't clip the image. I see alot of people use 'auto contrast' in envisage. Using auto will destroy your images and will remove quite alot of details. I'll say more than 50% from experience. I havent capture jupiter in awhile with the DSI might give it ago now
I will be writing up a basic tutorial on the DSI soon. Seems like there are quite a few new DSI users
gluck with it and feel free to ask away.
cheers.