cannot snap impages on Snagit?

by latenight9 - 5/15/10 12:40 AM

i use Snagit 10 and the screen would turn into a black one with the image capturing fingures on the screen after one hitting the Capture button. but it should be supposed to turn to the screen where i'd like to snap the image, shouldn't it?

anyone has had any idea of how this was happening?