NoD32 v2 Beta - LiveUpdate Problem

I am having a problem with NOD32 v2's LiveUpdate: while I have it configured to look for updates every hour, it always fails to find a new update (even if an update is available).

The log shows the update attempts are made as scheduled, but that the result is always that I "already have the latest updates".

If, when an update *is* available, I run the update manually (via the "Update Now" button), it also reports that I already have the latest version. Running the update manually a second time immediately afterwards has so far picked up the update.

I am running Win2K + SP3.