[SOLVED 7.0.3] Error to open multiple Cubase 7 projects

Hi,
With Cubase 7, it is no longer possible to open multiple projects, I always error with Steinberg key copy protection.
Do you have a idea?
Thx
Marc

someone there a solution or is this a bug?
THX

Works fine here. (Hard to help you out if you don’t do a bit of troubleshooting on your own and report your finding.)