Deus Ex (version 1.112fm) and .NET Framework 3.5 are required to run 2027.
Technical issues:
Q: My game crashes after the character creation screen.
Q: I'm experiencing a strange behavior of the game after a quick-load/loading a new level.
Q: 2027 is full of bugs. Have you tested it at all?
A: Make sure you have Deus Ex version 1.112fm. Try installing 2027 on a clean Deus Ex with the latest patch that does not contain any mods. We have been testing 2027 for more than three months and there shouldn't be any major game bugs left.
Q: I have a problem running the mod with Deus Ex: Game of the year edition (GOTY):
A: Make sure you have the latest version (1.112fm). Some GOTY distributions does not include the latest patch.
Q: I get a DLL error when running the game.
Q: I get a DirectX error.
A: Try reinstalling DirectX 9.0c. Make sure you have the latest version of Deus Ex.
Q: I get a "missing package" error.
A: Check your 2027 installation path. You need to select your root Deus Ex folder when installing the mod (i.e. D:\Games\DeusEx). Make sure you have the latest version of Deus Ex.
Q: I get an error when I'm trying to launch the mod from a desktop shortcut.
A: Make sure you have .NET Framework 3.5 installed. If you have .NET 4.0 installed, that doesn't mean you have version 3.5 too.
Q: I get an error (i.e. "Bex error") when launching the mod.
A: Try excluding /System/2027.exe from the DEP list.
Q: The game runs too slow/fast or skips some frames.
A: Run the game, press Ctrl+Shift+Esc (if your game crashes, press Alt+Tab first), go to "Processes", right-click "2027.exe", select "Set Affinity..." and make sure that there is only one CPU selected. Alternatively, you can install this utility (make sure you are running it as an administrator) and then set \System\2027.exe to run in a single-core mode.
Q: The game starts lagging after a few hours of playing. How can I fix that?
A: If you are playing with "advanced effects" turned on, try to reboot your computer.
Q: My game crashes when I'm trying to press Alt+Tab / Ctrl+Shift+Esc.
A: Press ~ (a key right below Esc) and type "preferences".
Q: I hate bloom. Is there a way to turn it off?
A: Sure. You can either press Shift+F12 in game, or uncheck the "Use advanced effects" checkbox in the game's launcher.
Q: Checkbox controls in the game launcher are broken.
A: There are some issues with checkbox controls under Windows XP or when using a "classic Windows" UI theme. The controls are working, you just can't see if they are checked or not.
Q: I can't select any of my items after loading a new level. How can I fix that?
A: This sometimes happens after watching a cutscene. Just drop your current item.
Q: Is it possible to run 2027 with the New Vision mod installed?
A: Yes, there shouldn't be any problems.
Q: Is it possible to run 2027 with a Steam version of Deus Ex?
A: Yes, you can run 2027 with a Steam version.
Q: I'm having a problem that is not listed in this FAQ.
A: If you are experiencing a technical issue that is not listed here, please create a new topic, write down your hardware/software specs and attach your \2027\System\2027.log file.