When I select File|Print, IRRICAD crashes in the printer driver e.g. HPGLRTL3.drv.
The printer which IRRICAD is pointing to does not exist in your Printers folder anymore. Open the Vcadd3.ini file in the Irricad folder (commonly "C:\Program Files\AEI Software\Irricad") and find the line Device= (near the bottom of the file). Delete the name of the printer making sure that the text Device= remains. Save the file. Now open IRRICAD and select Draw|Plot Layout and select the printer. Click Save As Defaults. Everything should work now.