Hello there,
Particularly on slower computers with low ram you could sometimes get "dbregimage errors" (most of the time they appear when you retrieve the first studies after starting K-PACS). This is caused by the file managment routine within the server. I am working on that problem and will provide a bugfix as soon as possible.
Secondly, sometimes not all series of the study will be shown as thumbnails. If that occurs, close the viewer and rightclick on the study in the grid. Select 'clear study from local db' and then retrieve it again. I will give an option for changing the behaviour of K-PACS when doubleclicking a study. There will be three modes: 1. retrieve and show simultanously (as it is right now), 2. retrieve everything and show afterwards. 3. just retrieve and don't show.
The bugfix and changes will be published next week.
Andreas