2D Overland Flow - Problem creating raster during simulation

I'm trying to run a 1D-2D coupled model in MIKE Urban with a DEM with resolution of 0,1 m. I've had the model running successfull with a DEM with a resolution of 1m, but ever since I've changed to a finer resolution I get this error:
"ERROR 010240: Could not save raster dataset to [b]C:\[/b]Users\***\AppData\Local\Temp[b]\C:\[/b]Users\***\AppData\Local\Temp\ras885 with output format GRID." Obviously saving the raster cannot work, as there is no network C within the network C. So I have a couple of questions
Has anyone had similar troubles?
Is there a limit to the grid resolution in MIKE urban? Or could the error come from a mistake when creating the dfs2 input file?
Can you change the default location for saving the raster?

For those who are looking for more information, please ask me.

Hi Lena,

Did this resolv itself? One possible error (that have been common lately) is if the raster is comma och dot separated. Have you checked that?

I would like to try it too.