I've been lightly following all the new ESET products since my beloved NOD32 2.7 but haven't upgraded yet. The new antivirus' didn't offer anything I needed, and I read some reports on instability with the Smart Security offering. Are most of those issues ironed out now? Is it safe to buy and run Smart Security 4.x now? If so, is there a thread with the recommended tweaks or settings to make it safe & reliable?