Reducing layer opacity on vector layers not working

[Mattyj]

Hey there for some reason reducing layer opacity on vector layers is not working? Any ideas as to what could be up? I want to trace a vector image of a png layer below it, but reducing opacity of the vector layer has no effect.

[synthsin75]

Is transparency enabled in the display settings?

[Mattyj]

Cheers for the response synthsin, where do I find that?

[Maestral]

Below the main window, far right - Display Quality.

[synthsin75]

And that's not available, if you're using Debut.

[Mattyj]

Ok cool cheers