This morning I found NOD stuck on definitions 4650, even though 4652 are the latests ones available. I've tried just about everything. Hitting manual update says that I have the "latest" definitions (not so). Clearing the update Cache did nothing. Clearing the update cache and rebooting did nothing. I can ping u20.eset.com and get through just fine. The update program is not timing out - it simply insists that it has the latest version available. I'd like to be able to stay up to date, considering the rapidly changing security landscape out there. Can someone please advise? I'm using Windows 7 Professional, and NOD32 4.0.437.0 - I've needed none of the changes in the updated versions of NOD and was advised that they were optional. Are update behaviors worth uninstalling and reinstalling NOD? That seems like a big risk and a hassle.