MTQatar
FYI the following is briefly, what happened.
The aircraft was A7-ADC Sector AUH - DOH 21/08/2002
On start up an ECAM message showing the FWD Cargo door to be open was activated.
Ground staff reset(?) the door and the warning cleared. Aircraft departed.
Passing 1000' the ECAM message re-appeared.
Commander elected to return to AUH for safety reasons and maintenance action.
Problem was found to be an out of tolerance door warning system device which can be damaged during baggage loading operations.