Good Evening, I'm new to G3D forums and this is my very first post Prelude: Yesterday, I've finally plugged my "new" Nvidia GPU (EVGA GeForce RTX 3080 Ti FTW3 Ultra) on my rig - after having purchased it late August last year but not being able to test it, because my rig has been crippled for months (until a few days ago...) by the sudden death of my motherboard... Before plugging the new card, I cleanly (completely) uninstalled the former ForceWare driver + GFE after having removed my former Nvidia GPU (a Turing-based GeForce GPU and the driver version must have been FW 45x.xx or 46x.xx WHQL). I also uninstalled all GPU-related software (EVGA Precision, GPU-Z, etc.) and even my Monitor driver & corresponding software. So it was completely clean uninstall. After having inserted the card, I then freshly installed everything (GPU driver & software, Monitor driver & software) from scratch - everything in it's latest, most actual version. The FW driver was also the latest, brand new version (511.23 WHQL, just released on 14 January). All driver & software installations went perfectly flawless. The Monitor is an ASUS XG279Q (IPS, 1440p, DisplayPort-connected to GPU) with the latest official driver and "DisplayWidget" software installed. The Problem: Immediately, I wanted to try out some games. But first, a little info on my installed system: my system is a Dual-Boot setup with Win7 being the main OS (yet) and Win10 still being the secondary OS - I intend to go directly to Win11 instead Win10 after being finally done with Win7. Since my Win7 is currently defunct likely because of the motherboard failure, I'm now temporarily using Win10 - and there I've only very old games (almost all OpenGL games based on the idtech 3/"Quake 3 Arena"-Engine) installed right now. The first game I tried out (RtCW) already came up with the problem of being extremely dark - I first thought, this could be just an anomaly and a gave it another Go. But after multiple Windows reboots, Nvidia CP tryouts and game config checking, the problem was still there. So, I tried out similar games (Q3A, SoF2, CoD, a.o.) and all of them had the same problem of being very dark - while on my former GPU with the former driver version on the same Win10 installation, they were not. Since all of those games are OpenGL-based games on idtech 3-Engine, I decided to try out D3D-based games. The first one (Call of Duty 2, D3D9) was very old too and surprisingly also had the same problem - until that point, I was thinking it was an OpenGL-only problem. Since that game was very old, I decided to install Steam on my Win10-setup and then installed a few much newer D3D-based games: "Half Life 2" and "Deus Ex: Human Revolution - Director's Cut". Again to my surprise, those games also were too dark - even DX:HR, which is normally the opposite! (too bright, so I have to dial down ingame brightness setting) From that point on, it was clear to me that this is a general problem NOT confined to either OpenGL- or very old games! But what's the cause? Just a few days ago, on the same Win10 setup with my former Nvidia GPU + former FW driver, this problem was nonexistent on ANY installed game, whether it was OpenGL, D3D or very old! Is the new GPU or the brand-new FW driver the cause? Or Windows 10? (I've heard in recent years that Win10 has such brightness/gamma-related problems...) My Nvidia CP color settings: Brightness: 20% Contrast: 50% Digital Vibrance: 60% Monitor settings: Brightness/Luminance: 100% Contrast: 100% R, G, B color channels: all 3 @ 100% Saturation: 50% I hope that's enough info for now... Help much appreciated! T.S.O.M.