No Sound after resume from Windows 7

If you are experiencing problem of no sound after resume from sleep on Windows 7 - x64 try this fix:

A) Open control panel

b) Go to sounds and manage sound devices

c) Under the playback tab, right click on your usual line out - disable and then re-enable.

This fixed things for me. Sure beats needing to reboot.

BTW, I had this issue with a M-audio audiophile 2496 sound card.