Yes,
No,
Yes (Since the initial install).

I haven't had any issues with my drivers at all, all my other games included(dayz, dota 2 ,CS:GO and bf4). So I highly doubt it would need an extreme process like that just for torishop to work. Perhaps, however - the shop has been changed to run online, and I'm currently running through a proxy which may effect it. Long shot really, but I'll try it on another network also.

Any more ideas?