I also replied to your similar email to us on this as follows:
Sorry to hear about the problem. Some questions:
- Are you using a Mac or Windows?
- What version of the operating system are you using?
- When you installed Hauptwerk, were any errors reported during the installation (especially related to installation of the SafeNet/Sentinel driver)?
- Do you have Hauptwerk set to launch automatically when the computer boots? If so, does it launch properly if you try to launch it manually by double-clicking on its desktop icon?
However, I see that you've answered some of those questions indirectly via your post here.
I think that the problem will be that you altered your PC's clock significantly, which will have invalidated the key that allows Hauptwerk to launch (when no Hauptwerk USB key is attached).
I'll email instructions to you a little later today to install a new key (sorry I don't have them to hand at this moment).
As a general note, it's very important for most software, including Hauptwerk, that your computer's clock is kept (approximately) correct, since lots of software relies on timestamps.