Methuselas,
The only problems with Rev5 is that you need to solder a wire to your kickstart chip if it's something better than 1.x, and if you want to do the 1M chip mod, you need to cut a trace on the motherboard as one of the jumpers isn't there yet in this rev..
I never had any trouble with my rev5 and I see that your only troubles were that you probably didn't have the wire on the kickstart chip. :-)
