Sorry but I hate to say this, how much I love NOD32 and have been using V2 for over 3 yrs, but ever since I updated and installed V3.0 AV my computers performancw with Vista has been playing up and this goes especially with Firefox V3.0. Also strangely enough when I had to reboot my PC/laptop the NOD32 V3.0 splash screen loaded but there was no NOD32 icon in the taskbar in which there normally is. Here are some of the faults: 1. When using Firefox 3 all will work well for a short period before long I will get a message on the screen saying I am unable to open firefox because there is aleady Firefox running, but its running in the background and all I see is the desktop. So I decide to go Task Manager to close it Off completely and re- open FF to start from scratch. But when I try close I cannot at all close FF no matter how many times I press End Process. 2. Computer takes 10 mins if not bit more to start up, not like before which took less than 5. 3. Sometimes screen will just lock up, have to re-boot laptop. 4. Refresh rate by pressing Right mouse button and chooseing Refresh takes ages. 5. When I booted up my laptop earlier, during the boot process after the Logon screen I got the Eset V3.0 splash screen logo, sadly enough NOD32 AV did not load or I cannot see it in the takbar. I've never encountered this version with 2.7 I would love to stick with 3.0 due to it having a better Engine etc and bein much newer than 2.7 I dont want to point my fingers 100% at NOD32 but I hava a gut feeling it is.