Bart, I just looked again and I do have the buttons there:
aResp := QuestionDlg('information', 'test response', mtInformation,
[mbYes, 'Yes', mbNo, mbCancel, mbAbort], -1);
//[mbYes, 'Yes', 'IsDefault', mbNo, 'no', mbCancel, 'cancel', mbAbort], -1);
So, I'm still stuck with the same issues.