All channels are locked and cannot be edited

Hello to all!

I’ve started Cubase today same as always and suddenly all the channels were locked.
It happens in every project even new ones so I’ve figured it has something to do with the preferences of Cubase itself.

I’ve tried Locking and unlocking with Shift+Alt+L,and it’s not working.
Any ideas?

Hope someone could help me,
Thanks in advanced
Hezo.