For those having problems entering your email addresses because pressing @ brings down the console, you can bypass this by copy-pasting from Notepad.
Having problems joining online servers? Well, if you can find the IP address, you can get to the server by opening the console and typing
open followed by the IP address. Example:
open 11.111.11.111:1111
If you are using Windows XP64 or Windows Server 2003 as an operating system, or are receiving an error message stating "Modified executable code is not allowed", there's a hotfix available. Click
here to get it.
For users who have GeForce FX series cards, the game will run fine, but you'll need a crapload of RAM and a powerful processor to pick up the slack. You can, however, play this game without meeting the minimum requirements, but only if your other hardware is powerful enough to compensate.
Sadly, I can't offer any potential solutions for the people who are having random "UT3Demo.exe has encountered a problem and needs to close" errors. There could be any number of causes for these, but I'll post any potential solutions as I find them.
Props go to Relic for this next one:
Here's a little tweak that might boost your FPS, especially if your system requirements are below recommended. Naviagate through
My Documents -> My Games -> Unreal Tournament 3 Demo -> Config. Open the file
UTEngine.ini, and scroll to the [Engine.ISVHacks] section. Find
UseMinimalNVIDIADriverShaderOptimization=False. Change this to
True. You'll get a slight FPS boost and the game will be smoother.
Obviously, lowering your resolution will speed the game up, but here's a little-known fact: Even if you crank your resolution down to 640x480, if a game is fullscreened and not at the same resolution as your desktop, you'll experience performance issues such as slowdown and FPS latency. To combat this, never set your game(s) to a higher resolution than your desktop, and if you happen to set your games to a lower resolution than your desktop, run them in windowed mode (tap Alt+Return). Of course, not all games can run in windowed, and with some games - most notably older ones - it won't make a difference, but with many full-3D games, resolution and aspect ratio can have a dramatic impact on performance.
The entire UTDemoCompat.ini file is pretty much devoted to graphics settings. Tweak it around a little, see if you can't boost your FPS a bit, but make sure to create a backup copy of the file before fuxing with it.
Oh, and naturally, be careful of background processes. Keep the vitals up, such as firewall and on-access AV, but as a general rule if you don't need it and it's whoring more than 10k mem (check this in Task Manager under Processes), terminate it.
If you've run a lot of applications before UT3Demo.exe, try restarting. A fresh RAM buffer can be helpful.
And if you get an "unknown filetype" error while trying to run the .exe file... run the demo on Windows, not Linux. >_>
Well, that's all we got thus far. Will post more as and when I get it, and you guys are free to do the same naturally.
UT 3 General Yib-Yab (Off Topic) 
Some UT3Demo bugfixes and tweaks... 
Modified executable code is not allowed. (UT3Demo) 
Linear Mode
