And now the activation screen is coming up, and i can't get past it... I believe the keys to be created from a snapshot of the installed hardware, and if SO, then why should we have to contact UBI everytime we make a hardware change?
If we DO have to contact UBI, then shouldn't it make sense for them to be available to help 24/7 or have a better explanation for not being able to RE-Activate the game after a hardware change? I have SH4 with the U-Boat add-on version 1.5... I saved all the keys and e-mails I have gotten since I downloaded this from them, and none of the codes will unlock the game. I bought an Nvidia GeForce 6200 to be able to play with faster framerates than my GeForce 5500 was giving me, and NOW I can't get the game to start... Any insight would be appreciated....

Welcome to the SHIV Forums, jeffsatin.

I've run into similar problems after I had d/led the U-Boat Missions myself and had problems with re-activation. I found it to be much easier to buy the SHIV U-Boat Missions on disk. As many times as I uninstall and reinstall programs I found it made life much simpler because I wasn't bumping heads with trying to get the download reactivated.

Thanks Tambor198! got it working once I got back home from an unexpected trip... Was given a new manual unlock key by support team and all is well!
Now I have a new problem within the game...
I'm running Silent Fire Elite, (what I call "SuperBoat"), and batteries aren't charging after using them for a while...
I have Silent 3ditor and know a bit about how to use it, so I was wondering if you could tell me what file contains the battery charging specs and rates? I can at least check it and see if it has gotten turned off somehow...
BTW, I have found SO many excellent settings with Silent 3ditor!!!