Find the BUSH DVHRS02 user manual here for download:
http://manualfox.com/link/bush.htm
jack
March 2010
The company admits there is a fault with the software. Telephone them {page 74 in their manual] as they don`t seem to respond to e/ms and they should send you a cd to update your combi.Don`t know if this works successfully as still waiting for update but they did seem eager to help