Hi, I've just noted that the last batch of PICs I bought (16f84 and 16f877) were of the 04/P type. I've been running the F84 at 8 Mhz and the F877 at 20Mhz without any problems, they don't seem to be overheating. What's the physical difference between de 4Mhz and the 10 or 20Mhz versions and do I risk damaging them if they are run overclocked for long periods ? Also, has anyone been able to modify the F877's SSPSTAT<7,6> bits also known as SMP and CKE ? I'm using MPLAB 5.00 and the simulator refuses to change these bits (banking is ok). Thanks, Tobie