System.Drawing, Server error
 

Hi to all
I'm using System.Drawing.Image for drawing in a web application, in
local work fine for all value, when I put the my application on the
server I get this error for big value:

Description: An unhandled exception occurred during the execution of the
current web request. Please review the stack trace for more information
about the error and where it originated in the code.

Exception Details: System.ArgumentException: Parameter is not valid.

Source Error:

Line 324: System.Drawing.Image img = new Bitmap(256 * n, 256 * m);

Anyone know the problem?