I have been using the Windows 7 64 bit release candidate since it came out and have not had really any big problems until today. It seems as though I can't open the window that lets me set the default playback device. When I go to Control Panel > Hardware and Sound > Sound > Manage audio devices, nothing happens. Nothing also happens when I right click on my speaker icon in the system tray and select "Playback devices" I tried uninstalling my sound drivers and then restarting but that didn't seem to help. Any thoughts?

You really haven't provided enough information. We need some details for any chance on helping you.Details would include a description of your hardware, installed drivers, etc...GA P35 DQ6 Mb, Intel Wolfdale 8600 3.33Ghz C2D CPU., 4x2Gb Mushkin DDR2 1066 PC2 8500 Ascents Memory Mods., PNY-nVidia GE Force 8800 GTS (640MB), 4-Western Digital Caviar SATA(2) HDD's (internal), 1 EIDE-USB External; Hauppauge PVR 1600 TV tuner, Dual Monitor: (1) Standard up top, (1) WideScreen below; Altec Lansign Speakers...

lencioni: You never responded. Have you fixed your problem? -Nick

I found that if you manually run: devmgmt.msc first and then try to launch the audio device manager it comes up just fine. Hopefully this helps someone

how do i run that

my computer is doin the same thing

logitech speakers