57. When I play my external MIDI keyboard, why don't I hear the sound through my selected DXi or VSTi synth?

You must be using an ASIO driver for "DXi/VSTi play-thru" to work, because this feature requires a low latency driver. In RealBand, you can set this up by going to Options | Preferences | Audio, and selecting ASIO as the Audio Driver Type. This requires that you have ASIO drivers for your sound card installed on your computer. If you aren't sure, you should check with the sound card's documentation or manufacturer.

Alyssa - PG Music