Turotial videos in Help of Xara Xtreme 5

Hello,
I cannot play the tutorial videos in the menu "Help" of Xara on Windows XP, Windows 7 Ultimate, Windows 64 bit. On an other notebook with Windows Ultimate, it works. Does it depend on the configuration of the notebook? If yes, what shall I do?
What I don't understand is why it works on a notebook but not on others having the same system (Windows 7 Ultimate or XP).... Does it depend on the configuration? If so, how?
Thank you in advance for your answer.
Kind regards

You have already posted this twice, once in another thread here: http://www.talkgraphics.com/showthre...a-Xtreme-Pro-5
And also at the Xara users forum.
If the answers you were given were not suitable, I suggested you contact http://support.xara.com - I think this will help you best.

did you put the cd in the other pcs where it didn't work?