Backupexe 2010 R3 exchange information store not visible

Hello,

ich have a Problem with Backupexe 2010 R3

Configuration :  Backupexe 2010 with  server windows 2008 R2 Standard and  Exchange server 2010 / Windows 2008 R2 Standard

we have a new Name DB Exchange ( information store ) and now is the Information Store not visible in backupexe

agent new installation and newstart exchange Server but no success

have you a idee

thank for a help