'Work'-field for tasks keep increasing...

I have just created a new project, and it seems to work fine except for
one thing: Every time I enter a value in a work-field it gets increased
when I leave it. That is: If I enter '2d 9t' it ends up being '3d', and
'3d' ends up being '3d 1t'. It also increases if I doubleclick the field
(or print). Weird, and extremely annoying...

It seems like the error is provoked by the fact that I changed the hours
of a working day. I changed the working days to go from '9:00-12:00' and
'12:40-20:00'. If I change them back, it works fine. Do you by any
chance have some (hidden) expectations for how long a working day is?

Regards,

-- 
Allan Beaufour Larsen <[email protected]>