[ubuntu-cloud] All instances remain in state "pending"

[Andreas]

Hi guys,

I need help with my Ubuntu Cloud Setup..
My setup is as follows:
Server 1: CLC and Walrus
Server 2: CC and StorageController
Server 3: NodeController

I installed everything without problems.
Loading of images works without a problem.


However when starting an instance it remains in the state "pending" for 
over 30 minutes (i terminated after 30 mins):
af at af:~/.euca$ euca-describe-instances
RESERVATION	r-32CC06A5	Andreas		default INSTANCE	i-484209D6 
emi-E15D1086	144.XX.XX.XX	172.XX.XX.XX	pending	mykey	0		m1.small 
2011-02-01T19:44:56.751Z	cluster1	eki-F4BD6105	eri-0CD5516F


Any ideas what is wrong?
The minimal Hardware requirements are meet.
Expecially the NodeController has sufficient resources. Its a Dell 
PowerEdge R410 Server.

THX Guys
Andreas