I found a bug in L3DT release 2. The screen-capture function didn't work properly because I forgot to refresh the screen first. The fix will come in release 2.1.
Speaking of 2.1, L3DT is finished but the viewer is not. Give us a week or two and it'll be up and going. I promise it will be worth the wait.
I'll be updating the tutorial and tech info pages soon(ish).