my iphone 4 gets about 2/3rds done and then just stops. I've searched through many threads but haven't found a solution. Any help?
Yes, DFU mode.
http://www.iclarified.com/entry/index.php?enid=1034
If it still wont restore and fails its a hardware problem and you need to bring it to Apple.
Interesting, so it was an itunes problem and needed a reinstall?
You didnt try restoring it on another computer either to make sure its not your machine?
nope, i just deleted those two files and itunes then a restart and it worked