When you start the the program it creates a .db file with the name of the computer profile (at least on my XP and Vista machine it does).

That makes it hard for multiple people to use the program without affecting the Preformace and Analysis features.

If there was an option to switch between profiles in the preferences tab that would do away with this issue all thogether, also it will make it really easy stick on a USB drive and use it on whatever computer you are on!

I've had something like this in mind... I plan a "Database" tab where you can see statistics about the database itself as well as import data / select which .db file you want to use. Currently there's also the issue of the .db file growing very large after thousands of sessions, which could be cleaned up in some way on this tab by the user (merging very old stats for months/weeks/days/etc.). Not sure when I'll get around to it, but I do plan to do it. :)

OK, made it so you can change database via a command-line option or by restarting the program. Hope it helps. Changing databases "on-the-fly" would be a lot more tricky and require some effort.