I was trying to jailbreak my new verizon iphone with OS 4.2.6 on my mac with Greenpoison. I followed the instructions on how to put it in DFU mode and it was in the process of jailbreaking until Greenpoision crashed. I was able to restore my iphone but i am now afraid of attempting again lol...any reason as to why greenpoison crashed in the middle of jailbreaking?
I used greenpois0n on both my VZW iphone yesterday as soon as i got them. With windows you can never tell what makes what crash. I agree with Garz, go for it again, just make sure you've got it backed up if you haven't allready.
Are you by chance on a University network or a network that has a proxy? Mine kept crashing because something blocked Greenposi0n from going out and downloading a file.