Facebook Checkin BB 9900 problem

Hiii, ever since ive got this 9900, not ever been able to use the "checkin" tried reinstalling via mobile app world, via pc appworld through usb sync, several times, restart etc the LOT, very frustrating now, i can login to my mates phones and the check in works? when i click it on the 9900 nothing works, whether its double click, touch checkin, nothing? anyone else come across the issue? thanksssss

hi! thanks for the reply! how do you mean its disabled from the pc?

yes have done, still nothing! i can use other blackberry phones and the checkin works, this 9900 just does not? is there ANYBODY who has the 9900 and the checkin actually works????? :)