Yes, I meant BIAB/RB 2021. Just installed it and am trying to get going.

Here is the situation now...

RealBand still complains:
"Input & output devices are set in Windows to different sample rates. Input will be disabled. Please select audio devices that have the same sample rates, or visit Control Panel > Sound, right click on each device & set sample rate in advanced tab."

Per the above and your instructions...

I Right-Clicked the speaker the speaker in the lower right corner of the taskbar and selected Sounds.

Playback Tab:
- Speakers are enabled and I set to 16-bit 44.1
- RealTek Digital Output is disabled
- Real Digital Output Optical is disabled
Question: Should I have more "devices" in this tab?

Recording Tab:
- Microphone
- Line In
- Stereo Mix
Question: But none of these seem applicable... right?
Question: And, Should I have more "devices" in this tab?

Sounds Tab: ignored as it controls Event sounds - right?
Communications Tab: ignored as it controls telephone sounds - right?

And for... RealBand Options... Here are my settings:

Options > Preferences > Audio
- Audio File Type: 16-bit 44.1
- Audio Driver Type: Windows Audio (MME, ASIO are alternates)

Options > Preferences > MIDI > MIDI Devicees
- input device: USB Axiom 49
- output device: Microsoft GS Wavetable Synth
- checked: Reroute MIDI to playback to default Dxi/VSTi Synth
- Timer Period 10ms

For clarity on descriptions...
the "Playback Tab" list output devices... right?
the "Recording Tab" list input devices... right?

So, I'm stumped as to why RealBand still gives me the error message on startup.

As an aside, With RB up I can hear the keyboard when I play it...
And I would like to discuss latency but after I get the bit rate issue solved... as my eyes are already rolling back in my head :-)

I really appreciate the help.