**BUG**
Concise problem statement:
Steps to reproduce bug:
1. Open schematic
2. Set zoom to 100% using menu bar or scroll wheel
Results:
Wires not showing in schematic
![Zoom 100][1]
Expected results:
Wires shows in schematic
![Zoom 120][2]
or
![Zoom 90][3]
I have also noticed in the PCB editor that ratlines sometimes disappear (although not always)
Browser:
Version 50.0.2661.102 m
Windows 10
EasyEDA 3.5.2
[1]: /editor/20160517/573a29566eae3.png
[2]: /editor/20160517/573a29f8ea213.png
[3]: /editor/20160517/573a2a5c1b56e.png