Window icon on XP not showing

Hi All,

I just completed a game and was testing it on XP/Vista/7. All is well except I noticed a small issue. On XP the icon in top left corner of window does not show, instead there is a default Windows icon image. The icon on the system tray appears OK. I used the following line to set the icon image :

SDL_WM_SetIcon(fIcon, NULL);

Vista and 7 work well, just not XP - is this an SDL issue or XP issue?