Wd elements play compatibiltiy with mountain lion osx

after upgrading to mountain lion OS X, the system does not recognize my WD elements play 2TB HDD.

The HDD appears in the disk utilitu feature , but the mount point is “not mounted” and am unable to mount it.

The HDD was working fine with snowleapord, so i know the HDD is working fine.

Need to know what do i need to do so that the disk is recognized.

Did you tried clicking the repair option from the disk utility?