A bug exists in all versions of Master series software prior to v1.77 (QA-Master) and v1.61 (Paint / Plastics / Textiles). On accessing the data slider in the control panel, the software MAY crash, issuing a General Protection Fault. The bug is not repeatable and will not be seen on all PC's. It is only seen when the Pass/Fail Status has been removed from the application's Control Panel. Workaround is simple; use the "Display/Options" tool to place "Pass/Fail Status" in the "Selected" options box.