Thank you very much! Using Applocale I can download again via clubbox.
I tried changing system locale before, but it didn't work...
I had to figure some things out to make Applocale work, but now everthing's fine.
Just weird to see that this problem has been around for a while now, but for me it appeared just recently...
There's another problem with clubbox I had from the very beginning, maybe I'll find some help.
I am very aware of the whole green file thing and that you need to own "credits" to download them (the ones with 300C, 700C, 1500C etc.)
In my mileage exchange page there seems to be the option to exchange mileage to those credits, but I can't click the button underneath, because it's grey.
As you can see in the screenshot, I have enough mileage and the other coupon buttons look just normal and "clickable".
I translated the information behind "Greenfile Coupon" with Google translate and it says sth like "Within 30 days of purchase and earn more than 1,000 miles to the Green file if the Exchange/gift. Green will earn 100% of the mileage, as long as the cache files."
Maybe this helps...
Thank you very much in advance