AC4 has always run on maxed setts on my ASUS HD 7870 DIRECT CU II 2 GB, i5 750 2.66Ghz, 8 GB RAM Rig before. Now after a long time today I tried playing on my PC. I started, restarted(just to be sure) AC4 and experienced how much it was lagging. Now there's another thing unusual that I've noticed, there used to be a download prompt before for a near to 5 GB patch for the game that I've always denied, it didn't happen this time. I know for sure it was never downloaded, but the game ran online still. Normally I'd have to play it offline denying the patch. Also there were a few mods especially lighting overhaul (I talk about Lighting Overhauls especially because AC4 appeared unnaturally bright in sum areas today) ones that I'd installed for my other games before I played AC4 today. They were: for DS2: GEM and gedosato. Skyrim: RCRN AE. GTA4: SweetFX and ICE 3.0. I'm not sure what else. I'd gone quite crazy modding. And lastly I installed the latest AMD Driver package for my card on my Win 7 64bit. So my concern isn't for AC4 solely but I'm also afraid any future game might be affected by the same problem. Please Help.