Not sure if it's something I'm doing, or maybe the patches are too complex. But, every now and then the virus will pop when playing a complex patch. It usually happens soon after changing patches, but can happen even on complex patches if too many notes being played. It sounds like the pop/glitch happens prior to the reverb effect, as the resultant noise has the reverb of my pad applied to it. Sounds kind of like someone clapping their hands in a deep cavern.
This is with the Virus keyboard running completely standalone (ie. nothing to do with USB/TI DAW or midi).
Maybe my pads just too complex, although I've heard similar occasional artefacts when listening to the Pads X Heaven Vol.1 demo on Youtube.
Is this just the audible result of 'note-stealing' when changing between single patches, or is it something else (maybe a hardware issue)?