Lync 2010 not finding distribution lists

Hi All,

When working on LYNC 2010 I search for a distribution list to add it as a group so all of the users appear within the group so I do not have to add each individual user. When I search any distribution list nothing appears. The list comes up with No results found.

I know this distribution list works as it works on multiple computers. Any help will be much appreciated!

Thanks,

Zak