Latest LogMeIn Update needs Admin Credentails to install

Hi

We have LogMeIn Central on approx. 2500 PC's that we support the majorty of which are connected to a Windows AD.  The update that's been pushed out 3-4 weeks ago is requesting Admin credentials which is a first.  The majority of users on our connected PC's don't have local Admin rights so can't install the update.  Therefore we're facing having to manually update around 2000 PC's.  We've tried pushing out a new .msi file with GPO but that just seems to reinstall the version they already have installed and it still requests the update!

Has anyone found a workaround to this please?

Thanks

Andy.