In files 3_win1.cpp and 9_win1.cpp
in function ScrollEvent() the following problem exists

//UI_REGION client = clipList.First() ? clipList.First()->region : trueRegion;
// sc7 complains about line above and quits with an internal error
// the code segment below should be equivalent
    UI_REGION client;
    if (clipList.First() != NULL)
        client = clipList.First()->region;
    else
        client = trueRegion;

