Dialog don't show background or title

I'm new to Dialogs, so bear with me if I've done something stupid with a file.

I use Dev C++ to compile, and ResEd to make the resource files.

I've made a simple Dialog programme, with 2 buttons and 2 blocks of text using ResEd:

Code:

IDD_DLG1 DIALOGEX 6,5,305,129
CAPTION "About The Author"
FONT 8,"MS Sans Serif",0,0
STYLE 0x80CF0080
BEGIN
  CONTROL "OK",IDD_OK,"Button",0x50010000,234,31,54,13
  CONTROL "CANCEL",IDD_CANCEL,"Button",0x50010000,234,60,54,13
  CONTROL "About the Author",IDC_GRP1,"Button",0x50000007,14,18,192,87
  CONTROL "change this to text",IDC_STC1,"Static",0x50000000,18,38,182,63
END

I call upon the Dialog with a simple menu:

Code:

 
case ID_MDIALOG:
     DialogBox(GetModuleHandle(NULL), MAKEINTRESOURCE(IDD_DLG1), hwnd, DialogProc);
     break;

Now i get no errors or warnings, but the Title bar and the background doesn't show, exept for the in the IDC_STC1 section where the BackGround shows.

I have no idea whats wrong, but any help is appreciated

Do you have a header file where the values for IDD_OK, IDD_CANCEL, IDC_GRP1, and IDC_STC1 are defined? Also:
> CONTROL "About the Author",IDC_GRP1,"Button",0x50000007,14,18,192,87
It looks like the width and height of this button might be a bit much (192, 87).