Huh? That’s a very old version of the game! It can’t be Patch R55. Are you installing through Steam or an outside source? 
Try the following: exit Steam, go to the Steam folder and delete the ClientRegistry.blob file; delete the x:\Program Files\Steam\SteamApps\common\Marvel Puzzle Quest folder as well; launch Steam again. User data is not saved in that folder so you shoooould be safe. Turn on Cloud storage for MPQ if you haven’t (Library - right-click MPQ - Properties - Updates - Steam Cloud Enable).
Thanks guys the above worked kept everything. Appreciate the help & patience. Especially as my little girl has kept me till 3am most of weekend. 
Anyway pat on the back to all. Do actually know how to upload pics but brain was dead.
