This is a fix for Windows' frame appearing and flickering in-game. I don't know exactly why it happens, only that clearing a few window styles corrects the problem. Ideally, it could be fixed by hacking the EXE and disabling those styles each time a 3D window is shown.

So instead here's a hack. Place JKBorderFix.exe in your JK dir and run it instead of JK.exe. It will launch JK itself (passing along any command line arguments, and including -windowgui by default). Then, because the window styles revert themselves after opening the in-game menu, it will clear the style every few seconds while the game is running. It closes automatically when you exit JK.

It's stupid but it works.

http://www.jkhub.net/project/get.php?id=1882

So I can run fullscreen menus?
Sweet!
E:Daww, I can't. Oh well.

It only happens to me when the screensize is < 9.

It happens to me no matter what screensize it's at. But if I change the screensize a bunch of times, it will fix itself. However, I also noticed that if I had any sort of overlays (like desktop gadgets on Win7), those would cause flickering in their areas.

Nice Emon, maybe Zeq can hack a fix into the next JKUP now that the specific issue has been identified.

Thanks, Emon.

I've always fixed that flickering by merely opening a chrome window over my desktop and running JK over that...

So just clicking the 'Disable Themes' box in the Compatibility window doesn't work?

That's true of a lot of those sorts of apps. Many of them work by drawing directly to the screen. They flicker through anything using the GPU, even when it's windowed, for me.

My problem is caused by the taskbar, doesn't matter if it's always on top or not.

I'll try this and see if it works.

The gadgets in windows are just GDI windows, they shouldn't cause a problem on modern applications. I think JK is the only one where I've had trouble.