iOS simulator doesn't seem to enable writing to disk?

Hey,

Am trying to test our latest app on iOS6.1 via the iOS simulator.

Problem is that we don't seem able to write anything to disk.

We have several shared objects which we can't 'flush' plus, when we try to write a file to disk we also get a fault.

The app works fine on actual iOS devices so I know our code is correct.

Has anyone else experienced this kind of issue?

I can't find any documentation to suggest we can't write to disk from the simulator so am a bit stumped!

Any ideas or advice greatly appreciated!

Thanks.