Hi, My current AV subscription to norton has expired and I'm considering changing to either KAV or nod32. I heard all the hype about nod32 but I've been doign my homework have have found a lot of problems with it and was hoping someone here could resolve my queries. The advanced user interface of nod32 would not bother me as I am a computer professional and get annoyed at "lovely" gui's that dont let you do what you want. And the resource usage of norton or KAV doesn't really bother me as my desktop can handle it although it can be annoying on my older test PCs. Still my main concern is protection and compatibility and therefore would be extremely grateful if anyone can answer my questions below. (1) Nod32 seems to show a lot of locked(4) messages when scanning files on other users computers. I've read this is because they are either locekd system files or active and running in memory and so it can't access them. However are other scanners like KAV and norton not able to scan files like this? and if this is the case is it a serious limitation of nod32's effectiveness as being unable to scan these type of files? (2) I've read that nod32 is excellant at finding "in the wild" viruses that aren't known yet but isn't as good as KAV, norton, or mcafee to detect viruses that are already known, and especially with spyware, trojans, exploits and similar malware types. I would rather have a program that has the best detection rate on virus, trojans, backdoors and the like and it seems that on known malware threats of all types KAV, mcafee, norton always faired better that nod32 in the tests. Is this true cos as I said I want a good scanner not necessary the fastest scanner? I don't want to compromise speed for efficiency!! (3) I've heard that the advance heuristics can give a lot of false positives, is this really the case cos I don't want to be deleting system files or needed program files? (4) I've heard that nod32 has a problem dealign with an infection once its found it. Basically that the options to clean or delete the file are not available when it detects some things. Can anyone explain this a bit more to me as I don't want an AV where I have to go and delete a lot of files manually when other AV's can clean or delete the files themselves. (5) I've heard there are a lot of compatibility issues with nod32 and other programs like Apache. This worries me a lot and wondering if anyone could fill me in exactly on the programs involved and issues experienced? (6) I've heard that nod32 doesn't handle packed files very well. Unlike KAV for example which is very good in this area. So if there are multiple levels of packing or rare packing types then nod32 is useless. is this accurate? (7) Apparently nod32's updates aren't as good as advertised. Kaspersky updates many times a day or at least daily however apparently nod32 which is suppossed to release updates every day often does not release updates for days at a time and often not at all on weekends. This seriously worries me. Can anyone confirm or deny this? (8 ) Apparently there is a problem with websites not showing in "higher efficiency mode", but they do in higher compatibility mode. This seriously bothers me as well as I have never had to reduce security settings to access a web site with any AV program i've had? I would never consider having to lower my AV settings just to make it more compatible with other programs and access web pages. (9) "If a scheduled scan is running in the background, there is no by-design way to pause or stop it!" Is this really true that you can only stop a scan if you start one manually? (10) "There is no way to be notified if NOD32 failed to obtain updates except for sending an e-mail via SMTP." Really is this true that the program doesn't tell you if it fails to update? (11) I've even heard it said that part of the reason nod32 is fast is that it doesn't scan as many files as other AVs do. Possibly for reasons outlined in points (1) and (6). Not being able to scan as many files as other AVs leaves quite a hole in your security! LOL, So anyway I think those are all my gripes, well those I can remember anyway. So basically in comparrison it seems like KAV personal (and pro) is far superior to nod32 in every way except for resource usage which for most computers these days isn't much of an issue. I got really excited when I saw nod32 and these questions seem to make we want to go buy KAV personal, or maybe even the pro version, although I know its almost double the price, because it seems to be far superior to nod32 in every way. nod32 doesnt even have outgoing e-mail scan but norton and KAV both do. I've searched for the answers to all these questions for many hours over many late nights, so please can anyone help me out on these issues once and for all and restore my faith in nod32?