Moving from sdl 1.2 to sdl 1.3

Compiled sdl 1.3 ( from 2 of jan ) without problems, recompiled sdl-image, then recompiled my opengl sdl-1.2 program which compiled without errors, but when I run it I get a black screen, in gdb I stop the program and did a backtrace a few times and it’s stops at different parts of the program but normally at SDL_GL_SwapBuffers(); Anyone know of anything special you have to change when porting a sdl 1.2 opengl program to 1.3? Can’t share much of the source code as it is a commercial project.

Thanks in advance,