No problem!
There have been several reports on Rack crashes that are related to audio I/O. Many times these can be traced back to the fact that the driver is not multi-client.
In some cases the ASIO4ALL wrapper solved a problem for some users.
FWIW i have a Realtek installed in my laptop as well, that works fine just with the basic Realtek HD driver, and as WASAPI device in VCV. This is what i use when on the go, in all other situations i use a MOTU Ultralite MK4.