And no matter how much gold I mine, the number doesn't change at all.

Basically I can't buy ANYTHING EVER.

Help?

This is for scenario battles, or campaign?

Scenario Battles.

are you doing the mode where you just have one guy and that's all, that might be why. I could be wrong though.

No, I'm doing endless survival defense.

You sure you havent changed anything in game files ?
I have no problems with Endless Skirmish Defence, try reinstalling.

Are there any error messages in the console (press ~ or / to open it).
What happens if you paste the following into the console (and then press enter):
ActivityMan:GetActivity():SetTeamFunds(4000 , 0);

And as asked before, have you touched the game actiivty at all or modified anything else and have you tried reinstalling?

Are you playing a particular map in Map Pack 3 by any chance? I've seen this problem before...

Huh. I just started the game today and the problem was gone. It fixed itslf.

Uh, nevermind.

Wait, nevermind again.

I can get gold, but once I get to around 1000 gold the counter flashes to -32300590637 and then I start at -1000 gold. Rinse and repeat.

Yes I'm using Map Pack 3, but I'm not playing on a specific map. It happens on vanilla maps aswell.

I've had this occur once while using CroboTech, but it's never happened to me in a straight vanilla game.

Weird. I'd try reinstalling the game.

Edit: Listen to Roast Veg. VVV

No don't do that, take each mod out one at a time until you find the one causing the bug, then report it back to us so we can look into it.