From time to time I wake my laptop from sleep and find that the audio driver (Conexant Venice) is no longer loaded. The audio hardware is listed in the Device Manager as just "base system device" (or two base system devices, to be precise). Rebooting fixes the problem each time, but it takes a while. Is there a quicker way to make the audio work again than rebooting? I've tried obvious steps like running the troubleshooter and disabling and then re-enabling the devices.