Poor quality figures using Matlab Compiler Runtime

I have a matlab function that creates some figures and I have run it in my laptop and in a cluster\server (compiled and run using MCR).

To save the figures I use print('...','-dpng','-r900'). It works perfectly in my laptop printing high quality figures with 7205x5400 but in the cluster it gives poor quality figures of about 500x400.

I have tried to set the renderer to "painters" and "zbuffer", printed to other formats, used a custom-made function that uses imwrite, and nothing works.

Anyone has any idea of how to solve this? Thanks

[Steven Lord]

When you say you're running "in a cluster\server", are you running MATLAB on a machine without a display?

[Akli Benali]

Yes, exactly; no Display and I am using Matlab Runtime 7.17.