Craftland.org

So I feel like a complete idiot for not being able to solve this problem, but nowadays, whenever I start the craftland launcher, it says "You need to assign more memory" So I do, restart, quit after playing, and then the next time I open it, it says again.. "You need to assign more memory" and when I assign a gb again, it doesn't offer to reset. It doesn't do anything. The only fix I've found is to completely reinstall the client. And it's driving me mad. Anyone having this problem?

if using windows, use the .exe instead of the .jar, that one keeps the settings