Errors after installing 5.63 and Essentials

[llandyw]

Last week, I updated to 5.63 and also installed the latest WinAmp Essentials.

Ever since then, when playing FLV files I almost always get the following dialog box. I changed no settings other than changing to wavOut.

Dialog is:

Unsupported PCM format (0 Hz, 16 bits per sample, 0 channels). Please change format settings in input plug-in configuration or change output device in waveOut plug-in configuration.

Error code: 32
Windows error message:
"The specified format is not supported or cannot be translated. Use the Capabilities function to determine the supported formats."

Any ideas? This doesn't happen using DirectSound.