In order to use Andy's Ham v20 (linux distribution including most linux ham software), I downloaded Virtualbox and created a linux guest, into which I installed Andy's Ham. Everything is good except for one major issue: I am using a Signalink USB as a sound cars interface. On the host, I am able to select the sound card in WSJT-X and fldigi and operate. However, it appears that Virtualbox does not share multiple sound cards well. I have tried accessing the passed-through USB port, but the VM locks up. Google research reveals that this is a known problem. Has anyone figured out a workaround to enable access to a Signalink from a Virtualbox linux guest?