Had a wireless mouse that was working without a hiccup until CoH. Disconnected it, put a wired mouse on, game works just fine now.

<t> I ordered CoH on 10/13/13, received it promptly and installed it. It looks great, reminds me of Squad Leader and ASL. Everything seems to function just fine, except when there is a flashing blue area on the map. I can left click & pick up a unit, use CAP's, use cards, fire on & hit/kill enemy ...