Ha I have the same proublem, the sentinal software can,t read or write to the database and I have the latest firmware. Here is the error: Database could not be read. BCDx36HP Sentinel Instalation might be corrupted. Please reinstall BCDx36HP. Extending gz file was failure. Accsess to the path 'C:\ProgramData\Uniden|BCDx36HP_Sentinel|Database|MasterHPdp.hp1' is denied. Why wont copanies make quality software like they did in the 80's?!!!