I did a clean install of v7 beta around 6 days ago (been using NOD32 for around 6 years now) and found it to be a very stable beta.
However 2 days ago virus signature updates stopped working, I tried a manual update but just got the message that my sig database was up to date. I checked the ESET website and my database was behind by 4 updates.
Uninstalled for now as I haven't got the time to work out why this is happening. Now back to version 6.0.316