deviceexpert-service doesn't start at boot-time

Hello,

I installed DE on a 64-bit CentOS system without problems, rc.d folders contains right assignment to start the application at every run-level as follow:

/etc/rc.d/rc6.d/K20deviceexpert-service
/etc/rc.d/rc1.d/K20deviceexpert-service
/etc/rc.d/rc2.d/S20deviceexpert-service
/etc/rc.d/rc3.d/S20deviceexpert-service
/etc/rc.d/rc4.d/S20deviceexpert-service
/etc/rc.d/rc5.d/S20deviceexpert-service
/etc/rc.d/rc0.d/K20deviceexpert-service
/etc/rc.d/init.d/deviceexpert-service

but when the machine is rebooted deviceexpert-service doesn't start and I need to start it manually.
Anyone can help me ?

Many Thanks