Remove Invalid Baseline from Pending Changes View

Hi All,

I'm using RTC 2 source control + automated builds. In my pending changes view in the outgoing folder I have a baseline to deliver. However, when I do a right click -> Deliver the following error message occurs.

Problem
An error occurred during "Deliver".

Can not update an item that has already been deleted from the configuration. config id = ; item id = ; item name = 'null'

http://img709.imageshack.us/img709/5104/rtcissuebaseline1.png

Uploaded with ImageShack.us
I assume this baseline was created when I started with building up my automated builds. At that time I sometimes removed failed builds.

So how can I remove that baseline from my pending changes?

Additionally, I don't understand when a baseline is created during automated builds. Is it only when changes where delivered to a stream?

Regards,
arens