Morning everyone. Mmm, I have a tricky issue, and it seemed to have started a few days ago (meaning it wasn't like this all the time). I am constantly in search of optimizing my framerates to get them to stabilize (anything around 30 is ok for me), and I suppose I did something wrong... What I get now is a framerate locked on 19.00, spot on. I tried just about everything I could find on the xp wiki, forums and google searches. I uninstalled my REX, reinstalled it with lower res clouds, I used payware and default planes, I went so far as to set back graphics to 16 bit, I even set all the features to "none" (object detail, forests, etc etc). Doesn't matter what I do, it sticks to 19 fps, and it doesn't feel good flying at 19 I tell you. I turned off AA and Anisotropy in XP and turned it on in my ati HD4870's panel, then the other way around, then both off (which MUST show an fps increase). Clear skies, rain, cumulus, fog, it all just stays at 19 This cannot be right, right? Would love some ideas, I feel like just reinstalling XP, but if I did that, I would still need to know why this happens so I can avoid it. My setup is simple, default global install, XP 9.69 (latest Servpack), some payware planes and REX HD (at very low settings and usually without cumulus). I also use some plugins, clearview(which I suspect might do something bad, but doesnt explain the fps locked in ALL weather types) and my IVAP client, pilotview and thats about it. I have a hd4870, 4 GB of ram, an AMD phenom X4 which runs around 3.2ghz stock and windows 7 with all updates, what more can I say? Hope to hear from anyone! cheerios marlon