Please describe the problem:
When I save drawing with UML classes connected by zigzag lines (dia 0.94 on
debian gnu/linux) in *.dia native format and then open this file on different
computer (dia 0.94 on suse gnu/linux), some lines are disconnected on the end,
but they looks like beeing connected (red boxes) - they are just shifted to the
right and when I move a little the object to which the end of the line is
connected, the line suddenly connects to the object. 

Steps to reproduce:
I was not able to find easy way to reproduce the bug.
My best recommendation is:
1) create big schema full of UML classes connected by zigzag lines
2) save it into .dia format file
3) open the file
4) observe

Actual results:
some of the lines are not *visually* connected on one or both ends (they have
their endpoints painted id red, so they are actually connected)

Expected results:
all lines should connect at the same points where they connect on the other
computer.

Does this happen every time?
yes

Other information:
I thing the problem may be connected with different fonts available on each
computer...

This file (smallest part of big drawing which still shows the problem) -
http://sweb.cz/JSpurny/err.dia - demonstrates the problem (screenshots:
http://sweb.cz/JSpurny/err.dia.jpg )