The thing that gets me is not so much resource usage in memory or cpu time (but more important that memory kB), but how the real time scanning on a antivirus app slows down my computer. With any antivirus program besides maybe AVG and NOD32 with a few exceptions everything from loading control panel icons is slow (not turtle slow, but still slow like a older computer) after using the computer for maybe a couple of hours after a fresh reboot. I don't know if anyone else has noticed this, but Avast for instance while the new version being light on memory usage takes forever to scan all the icon files or load a file on first load when opening a folder in explorer filled with icons, and just makes anything I/O lag out. Since I keep all my installed apps in 1 folder with a icon view it drives me nuts to sit there and have to wait while the damn real time protection is scanning them when I load it up. I've tried almost all the A/Vs, and avg + nod32 are the only ones that don't take 2 minutes to scan icons or silly stuff like that. If I didn't have this issue, I'd probably be with KAV/Avast. Anyone have similar woes/solution/possible explanation? I really need a explanation about this..it's driving me nuts that I'm the only one who sees this. Thanks in advance, dave. My System. eMachines t2778: Athlon 2700+ 333fsb 256k L2 768MB Samsung Dual Channel PC2700 (512mb+256mb) 80gb 5400RPM 2mb cache Western Digital ATi Radeon 9600Xt 128mb Samsung CD-RW 48x Samsung DVD-ROM 16x 250w Bestec PSU WinXP Home I've posted this is several forums in difference forums sorta, so if this sounds fimiliar, sue me .