Dolby users encountering Dolby Digital Plus not working or disappeared circumstance after is not an uncommon Dolby audio case. You can find it showing up in the programs list but not appearing on desktop icons. Whenever you launch the Dolby Digital Plus, error message reads, “The current Dolby Digital Plus audio driver version is XXXX and the software app expects driver version XXXX. Please install a valid driver and software application combination”. For most part, that malfunction has closely relationship with the audio drivers since Windows update always tries to replace the old drivers with the latest ones. While the Dolby Digital Plus audio driver may be incompatible with OEM audio driver, like Realtek Audio driver and Conexant Audio driver.