Fixed an editor bug under WinXP

Changes

@@ -1043,3 +1043,4 @@ seen. gmtime warning still there
 - Fixed a freeze bug in m_htm (pthreads now uses recursive mutexes)
 - Reversed freeze bug fix, _NP means NON PORTABLE
 - Fixed a freeze problem with conf_deny_link
+- Fixed a bug under WinXP in the editor

src/win32/Win32GUI.c

@@ -1016,6 +1016,7 @@ LRESULT CALLBACK FromFileDLG(HWND hDlg, UINT message, WPARAM wParam, LPARAM lPar
 					CheckDlgButton(hDlg, IDC_UNDERLINE, BST_UNCHECKED);
 				return (TRUE);
 			}
+			return (TRUE);
 		case WM_DRAWITEM: {
 			LPDRAWITEMSTRUCT lpdis = (LPDRAWITEMSTRUCT)lParam;
 			if (wParam == IDC_COLOR) {