macOS XCode is driving me insane!

[MythicFrost]

This issue I'm having is making work VERY hard, I hope someone can help.

When I'm typing the code it will at some point (every 5-10 minutes) scramble itself, syntax colouring is messed up, parts of the words are missing, it automatically moves my cursor to somewhere else, I can't read things properly, and undo/redo screws up, etc.
The easiest solution is to select another file in my project and then the one I was having trouble with, unfortunately, it can sometimes happen very often.

I've even had an error saying something about an index (from xcode) and asking if I wanted to continue or quit.
In fact, I've actually found xcode is modifying some of my code elsewhere, just little bits.

So, when I compile, I find I have 9 new errors or something from code that I haven't modified since I last compiled... which is very unproductive, fixing errors that shouldn't exist.

Any thoughts?

 

[Detrius]

Let's get the abundantly obvious questions you didn't answer out of the way first:

What version of Xcode, and on what version of OS X?

 

[MythicFrost]

It's late, I forgot.

OSX 10.6.4, XCode 3.2.3 (prelease) -- I've also had this problem on earlier versions though, of both OSX and XCode.

 

[Detrius]

Next, what all have you tried to fix it?

• If you log in as a clean user on your system, is the issue still there?
• Do you have random issues in other apps on the machine?
• Does Xcode crash? If so, what do the crash reports tell you about where it crashed?
• Do you have haxies installed?
• Have you tried running a proper uninstall/reinstall of Xcode?
• Is there anything at all you can think of that might be remotely relevant?

 

[MythicFrost]

Next, what all have you tried to fix it?

• If you log in as a clean user on your system, is the issue still there?
• Do you have random issues in other apps on the machine?
• Does Xcode crash? If so, what do the crash reports tell you about where it crashed?
• Do you have haxies installed?
• Have you tried running a proper uninstall/reinstall of Xcode?
• Is there anything at all you can think of that might be remotely relevant?

Thanks for your reply,
I have no haxies installed, I can't think of anything relevant, and I don't have random issues with apps on my system.

XCode has crashed, but frequency varies, it does come up with some strange error from time to time but I always click continue (instead of quit) because I don't want to lose my work.

I've not tried a re-install, or it on another account. I'll give the latter a try and then the former if nothing else works.