not yet. You can get your dos box back, by simply clicking on the Red O again.
If this is your first reboot, since you loaded it, it's running as a service. You can confirm this, by hitting ctrl-alt-delete, clicking on the processes tab, and look for FAH502-console.exe and FahCore_XX.exe ( where XX is the number of the core, ie, 78, 82,.. ) If both of these are running, then you're still folding away.
When I do that, it starts downloading again but it shows me as anonymous team 0.