[avr-gcc-list] very strange stuff... possessed circuit?

[Reza Naima]

I've been working on a project, all was going as expected, then 
everything started behaving strange.  I'll spare the history and get to 
the details.

I can write a simple application but it will not run - power cycling it 
or doing whatever I can to it.  I've got status leds attached to F0, F1, 
and F2 and F1 and F2 are held high.  If i use the JTAG bebugger and 
ender debug mode, it works fine.  If I unplug it after entering debug 
mode, it works fine.  If I power cycle it after that point, it works 
fine.  It seems that it's getting stuck at some point and that the 
debugger gets it unstuck.

This happened on an ATMEGA64.  I swapped it out with an ATMEGA128 with 
the same results.  All the fuses look fine -- otherwise, I have no idea 
what's causing this.  The thing is that it worked fine for the longest 
time, then this started up.  Any thoughts?  Is it possessed?

thanks,
Reza