graphics in pdf distorted

[Dietrich Bollmann <diresu web de>]

Hi,

When opening pdf files with evince some graphics are
displayed (and printed) in a distorted manner.

I put some screen shots of the distorted
graphics here: http://tinyurl.com/2kbm4p

I opened the same document four times (see the numbers
1 to 4 on the left of the screen shots).
Every time some different graphics where distorted.

The examples have been taken from one of the documents
I couldn't display correctly (the document can be found
here: http://tinyurl.com/2pu5ou ).

Any help?

Thanks, Dietrich