I'm sure I'm missing something obvious, - but I couldn't find the solution here or in the codex:
Since I changed to 1.5/Kubrick, the individual entries are no longer shown.
They are on the index page and in the archives, but the entry itself only is reduced to the title and the "This entry was posted on..." text.
Looking at the single.php, I found that it calls "the_content" after the title.
I even downloaded 1.5 again and uploaded the standard "single.php, but to no avail.
When I delete the "Single.php"-file, the individual entries do not show up either.
Any idea what I have been mising?