Startup Error

Hi
I have a problem with the debugger...
When I start my code with debug, it only shows
me Startup Error: graphics_create failed

why?

and how can I fix it?

The debugger runs in windowed mode. The graphics mode you're using may not be available in windowed mode, due to the limitations of your graphics hardware/driver. Just a guess.

no, thats not possible...
when I run it without the debugg (also in windowed mode)
it don't happen...