I have just updated to the new version of MPLAB and keep experiencing windows General Protection faults when I press F10 to assemble. (I am using win98). It does not do this every time, but enough to cause loss of work. My previous 3.40.09 was fine. Does anyone have any ideas or fixes. thanks Stephen H Alsop dms@ukonline.co.uk - http://web.ukonline.co.uk/dms