Finally the Indys and the 13W3 adapter arrived on Wednesday afternoon. But it seems I have to install them via serial console as none of my monitors seem to support sync-on-green.
I had a little bit trouble with Deutsche Telekom. I asked them two weeks ago to switch my DSL from 768 to 1024 as there was a promotion period for DSL 1024 where you had to pay no fees for changing. Now the have switched my DSL from 768 to 1024 and my telephone connection from ISDN (digital telephone) to analog. Very strange!?! And they want me to pay over 100 EUR