No EQ curves visible in Channel Settings

I am using CB 8.010, running on a Windows 8.1 PC. Have been since CB 7 came out.

After updating to CB 8.0.10 some behavior changed. When tuning EQ settings (Channel settings, EQ tab) I used to be able to see a real-time spectrum and the equalized curves. Now this area is empty/black. I can hear the audio, and changing EQ settings does make a difference, however, I can’t see the spectrum (and filter curve) anymore.

It sounds like something stupid I am doing or missing in the new version. Can someone set me straight on this?

Thanks, – Chris.