Unless you're looking at the GPS window, it shouldn't show Seconds at all. If it does, then something isn't handling the time formatting correctly. For example, the time on the 'status bar' should look like: 4:32pm
I looked into it, and made a change that I think will fix the time display. Let me know if it works for you. If not, let's look into it further. It's probably something to do with internationalization.
I've updated the source on my end to VB.Net 2008 so we can stay in sync with that.
I updated the 'Latest Build' page with the new code.
I don't think we want to just show a blank for No Speed. I mean, most CarPCs will have GPS or OBD, so the program should know the speed. If it doesn't, it's almost like something is wrong (software or hardware). It's kind of a debug message I guess. So I'm still torn on this one.