Just noticed you got it right. I'll just leave the original reply i made here for prosperity
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Try changing the server it downloads from.
Run Spybot.
Click on "Search for Updates"
Inbetween "download updates" and "Show Log" is another button with an arrow next to it.
Click on the arrow.
Click on any other name in the list that shows up. Preferably not the one at the top (THe one at top may be kolla.de. Try a different one)
Click on "search for updates"
When it finishes searching, click on "Download Updates"