Startup screen like freezing when using jailbreakme.com to jailbreak my iOS4

After a successful jailbreak using JailbreakMe.com, my iPhone 3Gs FU initial startup (lit) fits apple logo like freezing and suddenly there a loading circle around then hangs for a moment that rotates so (and there is an error screen like so ..) but still my iPhone work fine .. Is that normal? im uncomfortable because when i use BlackRa1n and the spirit to jailbreak 3.1.3 last time, my start up work normaly..

The Answer is

Its Normal when you use jailbreakme.com to jailbreak your iOS4 :D Happy Jailbreaking dude