Oh - "design" isn´t a german word, so i thought it isn´t translated to german. But you´re right - it must be the "themes" service.
All services are translated to denglish(deutsch-english) or german
I cant see why this service should have something to do with the issue.
Its the default Win MCE theme and i havn´t changed it since years
If i use normal XP theme (not MCE theme) the issue still exists
If i use classic theme the issue is gone
Maybe its only by accident that using classic theme solves the issue?
(and diagnostic start can be selected in msconfig but i can´t recommed it because it doesn´t remember the previous settings of activated/deactivated startobjects. I used system restore to get back)