Oh, I'm sorry! The first question wasn't needed. D:
I tested it here within Arch Linux and apparently there is problems while running it on Arch Linux. It opens but one Black-Gray screen appears and that's it. For a few seconds - let's say.. less than 5 seconds - it stays opened and after that, it closes. Error messages are shown here in my terminal.
Error messages:
QWidget::repaint: Recursive repaint detected
Segmentation fault (core image recorded)[/code:1012vtvd]
The first message is outputted infinitely while the software is 'running'. After it closes, the second message appears.
The last message I translated because my OS is in Portuguese. So I don't know if it is in terms with the original English message.
I will test it on XP but I can't right now. So.. apparently, it's best to use this software within Ubuntu or Debian (better Ubuntu as it is developed within it, apparently). And I will test it on Debian Squeeze and Wheezy as well.
I hope it helps!
For now, if it works OK within Debian, I guess I will buy it!