OS X :: KRB5KDC Uses 100% Of My Processor All The Time

I have a process on my iMac (core i7 quad, 16 GB Ram) thats called KRB5KDC. It uses 100 % of my processor, and 2,8GB Ram, All the time - Even just after i booted up. This makes the computer pretty useless as you can imagine.

After googling and mRoogling around i found out that the process belongs to Kerberos - some sort of network authentication protocol - i dont know anything about that, but it shouldnt use 100 % processor power.

Any help would be greatly appreciated, since applecare couldnt do anything but offer a hardware repair - strange solution for a software problem...

Here is what i see in activity monitor:

477 activitymonitordroot0,511,3 MBIntel (64 bit)
321 AirPort-baseagentAsk0,046,0 MBIntel (64 bit)
474 Aktivitetsoverv�gningAsk2,5225,9 MBIntel (64 bit)
381 AppleSpell.serviceAsk0,037,5 MBIntel (64 bit)
54 autofsdroot0,021,1 MBIntel (64 bit)
16 bluedroot0,036,2 MBIntel (64 bit)
14 configdroot0,064,0 MBIntel (64 bit)
147 coreaudiod_coreaudiod0,033,6 MBIntel (64 bit)
82 coreservicesdroot0,0519,5 MBIntel (64 bit)
476 cvmsComp_x86_64Ask0,016,0 MBIntel (64 bit)
137 cvmsServroot0,02936 KBIntel (64 bit)
332 DashboardClientAsk1,8523,0 MBIntel (64 bit)
331 DashboardClientAsk0,0513,6 MBIntel

And here is a screenshot of my startup items: