I need a compatible driver with Acer an 517-42, to work together with letasoft (Leta for boost and fxsound as equalizer) I have changed the startup options to run together but with the virtual driver only is not working anymore fx sound is set up at logon and letasoft delayed 1 minute. I cannot set up realtek as default driver and i cannot reinstall the driver after uninstall because it saying is incompatible.