Scrobbler Error: RtApiDs

My Radio on the site works, but I can't get my scrobbler to play, whether it's my own Radio or that of some artist whose name I type in. I get this:

"Couldn't start playback. Error:

RtApiDs: Unable to start buffer (Primary Sound Driver): DirectSound unknown error."

I've re-started it and re-installed it. I searched this and found a thread from '08 that said to go into Tools > Options > Radio and change the Soundcard settings from Primary Sound Driver to that of my own computer, which in this case is Speakers (Realtek High Definition Audio). I did that and then the same thing simply happened:

"Couldn't start playback. Error:

RtApiDs: Unable to start buffer (Speakers (Realtek High Definition Audio)): DirectSound unknown error."

Putting it back yields the same results. Anyone know what to do? Thanks.