While i was working on a project it happened to me to have some troubles with heating. In this application i've a debug led which lights up exactly every 5 secs. After a while this time increased up to 7/8 secs. i'm sure the code is ok.. the question is: how much the temperature could affect a pic and/or it's 4mhz xtal? -- - *Alex* - http://freepage.logicom.it/azummo/