the other day I was messing around on my laptop ( a dell inspiron 6400, on vista ) trying to install a new headset I had brought, after the installation had finished I went onto sound ( through control panel ) to set the microphone sound levels higher,
when I went onto sound it came up with to devives , one being the headset the other being the speakers, now I dont know how but I think I may have deleted the speakers off my laptop whilst tryin to access the headset.
i now have a small red circle with a white 'x' in it, which to me does not make sence because on other forum it says that this is due to sound driver not working , but mine is working fully on the device manager ??
i think I had the same problem. my speaker icon showed the little white cross in the red circle because I had accidently disabled my speakers. if u go into the playback settings and right click on the empty list u can check "show disabled devices" and the re-enable it straight from the list