I have the same problem.
It seems that Acoustic do not support it as it is exclusive to Argos. Argos have a technicasl helpline, but they need model and receipt number (which I no longer have). Argos have told me that there is no technical support on the product, but will refund it at their current price of £14.99.
If you have you receipt number the support number I was given was 0845 1204364. If you are successful maybe you would drop me an email with the solution at ian@thesutherlands.com
Ian Sutherland, September 2007