i have been using my 1.0.2 ifone on tmobile for a while and ttoday when i put my buddies sim card in there, it said unknown sim. Mind you i didnt upgrade the phone or anything. So i went ahead and restored the phone again using the 1.0.2 recovery file. Once restored i open independence to activate the phone but independence constantly crashes and then i have to restore he phone all over again. Think it could be a problem with my Mac itself? im planning on trying it on my friends intel macbook and hopefully it will work. can anyone think why independence is crashing?

it crashes even before it gets into recovery mode and all the text runs down the screen.