Can you help with Advent MP82 camera please How do you reset settings?

EXTRA INFORMATION FROM ASKER: While changing the settings on my camera I managed to change the battery setting from Alkaline to NiMH. I am not using NiMH so now when I switch the camera on it says "replace battery" . I cannot change the setting back because the camera wont work.

Is there anyway I can reset the settings?

Note: the batterys are new and worked perfectly before I changed the settings.

Please help I am going on holiday next week and need my camera! Thankyou :)