Mine crashes often. I have a lot of reception interference where I live. By the way, Skystar HD2 which I also have - is immediately released so I can relaunch DVBViewer immediately.
I'm using driver ver. 2.0.0.5 with DVBViewer 4.6.0.1. When DVBViewer crashes (e.g., lost signal), the card is not released for many many seconds, sometimes I even need to restart the computer to have access to it again.