The Sims Medieval launch error. Installation verification failure

@EA_SolaireI am no longer getting the verification error after installing the game via my disks, and I can now use the EA app to launch the game after this [see seventh attempt 🙂 ]. In fact, yesterday I added 15 hours to my play time. 🙂 I think my game crashed once? But other than that it ran smooth as butter.[ NB for anyone else who reads this: I did have to edit my graphicsDB.sgr in the game/bin folder to have the game recognise the RAM to the 4GB limit for the 32-bit engine on 64-bit machines, just like you do for TS3. Easy google search to find out how (not sure what the rules are here for linking the how-tos here 🙂 ). This is not, however, relevant to to original error].

Having said that, I do still have the "purchase the game option" in the app as of this morning. I'll take a screenie and add it to this post in a sec.  🙂

ETA images. I also popped up an image showing P&N is installed, just in case it's needed. Also, apologies for the weirdo images. Paint resizing.

Edited again to add: I checked just in case it's relevant, even the MEcubed Legendary Edition, purchased via Steam and installed via Steam, doesn't have that "purchase" option available.