Having issues jailbreaking iphone 4, help appreciated!

[A MacBook lover]

I just updated it to IOS 5. Now when I try to jailbreak it via redsnow; it finishes but then gets stuck on the circle waiting thingy. snow doesnt seem to work either, it just remains on the apple logo with an empty loading bar.

 

[lamina]

I'd restore the phone in DFU mode and try again.