Hey All, I've got a weird situation and was wondering if anyone could help, though I wonder if it's something that shouldn't even be asked. I bought a digital download version of COD 4 for Mac. Since then, I've had a few nightmares with my machine. I've had to reinstall my system several times - three time related to issues which lead to logic board replacement and a few more related to problems I was having with Office 2008 which still haven't been resolved. Anyway, I've had to get a new serial number from them as you're limited to three installs with the download version. I've now reached that limit again and they were none to friendly when I contacted them for another new number in such a short period of time. Now I've been a proper digital-type for a long time. I don't pirate software and I don't even rip music I haven't purchased. (Trust me I'm no boy scout it's just a karma thing for me.) Basically I've made a big mistake in buying the digital version, especially since I'm the type of person who likes to completely wipe their computer every once in a while and rebuild everything fresh just to get ride of all the extraneous stuff that collects. So that part's on me. But does anyone know how the license process works? I know if I clone my drive then the game will play fine. But I can't drag all the related folders that I know of from my clone to my newly rebuilt latop and have it work which is what I really need. Does anyone know if there's a file or folder that will enable me to play the game on the same computer with the same license, just with a rebuilt system? Is it a hidden file? This would be simply so I can rebuild my machine and then play the game that I've paid for.