For sure it is related to this problem.
There seem to be two interacting issues/solutions.. So I have a beta that fixes one half of the problem, but then causes another half of a problem to return.
The two problems seem to be related to the program tricking itself about monitor resolutions. So in the first problem, its not capturing the entire monitor sometimes; and in the second problem its zooming the screen when you do a region capture.
I think I can work on a fix this week and hope to solve this once and for all.
But I'd like to make sure I understand nkormanik's problem -- whether its happening on a normal window or workspace capture, or a selected region drag+capture operation.