I too am having this same problem. I have only been able to build a simple flag with low polygon count giving me a very triangular flag. I cannot even open the sample projects from the Zaxwerks website and do anything with those. I get the about error message and got no image in my comp window. I’m not using it on the fastest box but it’s totally unusable. Neither box will render a usable flag.
Work box
HP Z400 dual 2.4ghz
4GB ram
Windows Vista Business 64bit.
Render box
HPZ800 8 Core 2.27ghz
4GB ram
Windows XP 32bit
Rick