Slitherine

Having a major problem trying to load USC42, USC43, and USC44-45. I already have loaded PzC v1.26 so why did it force load it again? After loading PzC v1.26 next comes up the screen to start the process of loading USC43. The key that was given to me with my order constantly brings up "invalid key". I tried both with and without the usc1. No dice. Is usc1 part of the key? How do I get past the "invalid key? Thank you, Fuzedude.

have you typed it in, or copied and pasted it? as sometimes with copy paste, you can take over a extra space if not careful

repost if still having the issues with the key once it's been manually added and tried