Hi Solarwind, Are you SURE the wall adapter is regulated? Most are not, and even the regulated ones often have a much larger tolerance than typical regulators do (i.e., it is typical for a 5V regulated wall wart to output 5.3V). Note, too, that electrostatic discharge could have caused this, too, since parts can be thrown into latchup by an ESD event. Also, is there any chance that you removed the 5V supply and still had the parallel port attached? Applying voltage to the IO pins of a device without Vcc supplied can also cause this type of damage. Sean On Wed, Dec 31, 2008 at 2:43 AM, solarwind wrote: > Yes, powered from a regulated 5 v 300 mA wall adapter. > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist