I presume you are on a PC---I'm on a Mac using Pro Pack and I've been having exactly the same problem with Cyber Vic 2, Amazon Princess( but only intermittantly,re-installing seems to sort it out for a while) as well as numerous freebie things . My "help!" e-mail to Darkworld was passed onto Daz who said that Macs with ProPack are picky about reading cr2 and pp2 files and over at Daz they use some kind of clean-up app on files for macs to sort that problem out when they make the installer. Some might slip through the net which is probably what I got. The fixed file they supplied me with worked fine. Supposedly PCs aren't as fussy but maybe its for a similar reason that your're having that problem ? I guess my telling you all this isn't exactly going to help you solve the problem but at least you know you're not alone : )

" Try and be nice to people, avoid eating fat, read a good book every now and then, get some walking in, and try and live together in peace and harmony with people of all creeds and nations."
-Monty Python