[Gwc-general] Playback speed problems

[tom <tom...@gm...>]

GWC is playing loaded wave files at or near twice the normal speed.  
When launching from the command line I see the following warning messages:

(process:3107): GLib-GObject-WARNING **: Attempt to add property 
GnomeProgram::sm-connect after class was initialised

(process:3107): GLib-GObject-WARNING **: Attempt to add property 
GnomeProgram::show-crash-dialog after class was initialised

(process:3107): GLib-GObject-WARNING **: Attempt to add property 
GnomeProgram::display after class was initialised

(process:3107): GLib-GObject-WARNING **: Attempt to add property 
GnomeProgram::default-icon after class was initialised
libsndfile Version: libsndfile-1.0.25 1 0 25.

I don't know if these relate to the problem.

I I used Audacity to convert one file to halfspeed which then played 
normally in GWC. GWC did  an excellent jog de-clicking and de-noising 
the file, so if i could solve this playback problim  I would be very happy.

I'm running Ubuntu 14.04 on a Dell Inspiron Mini 10v.