"apparently that is a problem for a lot of users. No help from Nuance, as usual."
That's right two times, Paperport isn't worth much, and Nuance support is worth nothing. (On the other hand, I once bought, for several hundred euro then, believe it was 270 euro = 380 bucks, or was it even 340 euro?, an early version of Omnipage - terrible! Now, I own a free and crippled Omnipage version 16 (never bothered updating, in view of my big loss), and I'm rather with it: It's much, much better than the outrageously-priced early version had been!
In general, living in Europe and never buying from amazon.com (but often from amazon.co.uk/.de/fr, all with no probs whatsoever), I don't buy much anymore without first, and systematically, check for the product both in the web and especially in amazon.com - and of course, there you'd have been informed on both counts before spending your money. It's amazon.com, not .co.uk, not .de, not fr. - I want the sheer numbers: with 300 reviews, there's fewer chances of them all being manipulated than with just 12 or so on amazon.de/fr, for the same product.
On the other hand, if you have a recent version of Omnipage, re-install it and try to tweak it a little bit, it's not that bad at all for ordinary originals.