Hi Bart, Changing focus... The first error reported in boot.log is: ERROR: Port 0xac1c is not available (outw), "save_vga_state" failed. Since the port number doesn't appear in hwinfo or lspci, it seems that adding some debug statements to dosemu might help. The message above comes from ports, notably port_not_avail_outw() which calls check_crit_section() which spits out the message. Looks like I need to trace backwards to see how/why port_not_avail_outw is being passed address 0xAC1C. Have you any suggestions of a better approach? Regards, David -- To unsubscribe from this list: send the line "unsubscribe linux-msdos" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html