>From Microchip Forum: http://forum.microchip.com/tm.asp?m=116237 http://ww1.microchip.com/downloads/en/DeviceDoc/ICD2_Advisory_51566a.pdf For those experiencing problems with MPLAB ICD 2, please refer to the MPLAB ICD 2 Design Advisory, DS51566. This covers issues such as AC Grounding Oscillator Circuit Setup USB Driver Enumeration Proper USB Connection to Avoid Latch-Up Hibernation Correcting Crosstalk - dsPIC(r) DSCs -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist