Hi When I create a window with iImage and mouse over the window with the image object I get streams of floating point errors appearing on the command line. This is kind of inconvenient, is there a way to make them go away? e.g. % Program caused arithmetic error: Floating underflow % Program caused arithmetic error: Floating overflow % Program caused arithmetic error: Floating illegal operand OS is Mac Lion IDL Version 7.0.1, Mac OS X (darwin i386 m32). (c) 2008, ITT Visual Information Solutions The error doesn't seem to happen on linux box and sunOS boxes I have. Thanks again, Shane