Ever since I installed ZCO, I no longer get any type of new mail notifications. No sound, no popup, no taskbar icon changes. Is this a known problem or is there something I can do? All notifications are enabled as far as Outlook is concerned.

I'm running:
Win7 Home Premium
MS Office 2010
ZCO 7.1.3.6347
Zimbra NE Server 7.1.3_GA_3346