Can't use all monitors

nickliao NathannielSalami 

The fix is available on the latest beta client version 10.7.9 (build 2011). You can get it from aka.ms/rdmacbeta

Send us a screenshot of your display arrangement if you're still hitting the issue after trying with the latest build

Been having the same issues since the 10.7.8 update on the Apple app store. Multi monitors worked fine before this update.