All startup errors can be tracked to one of three things: (1) corrupted Qimage settings, (2) a corrupted image in the startup folder, or (3) a broken printer driver.

Try starting Qimage with the Shift key held: hold the Shift key until Qimage displays its first screen/dialog and then release it.  That should start it in safe mode and you can set up your preferences manually.  If it won't start with the Shift key held, you may want to reinstall the printer driver for the default Windows printer.

Regards,
Mike