forward/rewind does not work on cubase 6

Hi.
I work with Cubase 6 For about 3 years.
resently I installed it on my Laptop (I7, 16GB RAM) and all worked fine.
The problem now is that I can’t fast-forward or rewind with the key commands !
When I select either function, by pressing + or -, the corresponding button lights up but nothing happens. It doesn’t matter whether I open an existing project or use one of the default templates.
I think it worked before and suddenly stopped working…

Any help in this would be much appreciated.

Thanks.
Zevik.

what operating system? I’m trying out Windows 10 for the first time and I have the exact symptoms. Transport lights up when I hit the numeric pad +/- but cursor doesn’t move…

I’m on Cubase 8.0.30