> did you check the minimum Vdd for erase? > > Wouter van Ooijen Days later, but I've been out of town... The prize for politest ever RTFM goes to Wouter. I still can't find the spec in the datasheet, but hooking up a 5V supply fixed it right up. Grr. Mike H. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist