I see a lot of people saying that using the 5-pin header is a bad idea, because it can't be keyed. The Warp-13a has a keyed 5 pin connector. Furthermore, improper connection of the connector goes from a disaster to an annoyance by rearranging the pinout thus: 1 Vdd 2 Gnd 3 Vpp 4 RB7 5 RB6 That way, if hooked up backwards, Vpp still goes to the proper place. I'm not sure what the effect of power to the RB pins would be, but as long as the on-board circuitry is designed with care, the problem could be minimized. Thoughts? I do like the idea of keeping it at .1" increments, as well. It irks me that DB9 and RJ11/RJ45 are so hard to use on breadboards. Mike H. _________________________________________________________________ Get MSN 8 and help protect your children with advanced parental controls. http://join.msn.com/?page=features/parental -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu