Sorry, it now behaves like the windows xp osk:
In the first dropdown box 'Town': the first letter is entered as it should (the previous version didn't), but when I press the second letter to narrow down the selection in the dropdown box, the cursor jumps to the second dropdownbox 'Street' and the letter is inserted there.
Strange enough, when I enter a third letter (which is the second letter in the 'street' dropdownbox) to narrow down the selection in the 'Street' dropdownbox, it works as it should! I can enter as many letters as I like in the 'Street' dropdownbox.
Maybe this is because the next entry box is not a dropdownbox, but a entryfield for (house)numbers.
The previous version did not let me enter any letters in the 'Street' dropdownbox.