Tape drives not showing in Storage tab of BE 2012 - Dell ML6000

Hello,

I am having trouble getting my tape drives to show up inside of BE2012. They were working fine at one point but i had to reboot the server and now they are no longing showing up in BE. They are listed inside of Device manager and are part of the BE2012 HCL. they have been working for a while but now when i run the Symantec Device Driver Installer inside of BE nothing appers in the Storage tab after the two tape drives install using the Symantec driver in the wizard. 

Any help would be great.

Thanks,