When you have the version mismatch error that is caused by the DRM.
Please check the following things:
1) Did you install XStoryPlayer on the same machine as you downloaded it on?
2) Make sure you keep your internet adapter enabled. XStoryPlayer does not use it, but it needs to check if the ethernet card is still present.
3) Make sure you enable XStoryPlayer in Avast! This virus scanner has (too) strict rules regarding software that is downloaded.
That being said, if you have checked all these things and still have this error, please contact us here:http://www.xmoonproductions.com/support/
We cannot reproduce the issue ourselves so we need people that will help us test and fix it.
So please make a support ticket saying: "I want to help find the version mismatch error."
And provide the correct email that you used on purchase.
Also for other issues please contact us in the support section.
Thanks in advance.