From: Tim Shundo on
http://www.timshundo.com/dpud/uploads/Screenshot%201.png

Somewhat self-explanatory. When Joining or Union-ing objects, horizontal lines
tend to bleed 1 pixel below the actual path line. The fix is to move the path
up, but when you have hundreds of joined paths, it can be pretty tedious and
annoying.

Fix?

From: ArunKaza on
Hi Tim,

I believe this is because of the differences in the vector rendering engines
used in FWCS3 and FWCS4.
While the vector rendering engine in CS4 was improved to be more faster and
produce smoother antialiased vectors, subtle differences do exist between these
engines.

The good news is that you can use the older engine selectively on a vector if
you wish to, using the command
fw.getDocumentDOM().setUseAGMRenderingForSelection(false); This marks the
selected vector to switch to using the older rendering engine.

Any vector brought into CS4 which was created in CS3 or before version of
Fireworks, would still continue to use the older vector rendering engine to
give the exact pixels. These can also be forced to use newer vector engine by
using the script command
fw.getDocumentDOM().setUseAGMRenderingForSelection(true);

Since these commands act on the selected objects, please be sure to select
only those that need to be effected.

For ease, I have attached links for the 2 command .jsf files that can be
placed into commands folder [C:\Program Files\Adobe\Adobe Fireworks
CS4\Configuration\Commands\] and used to switch b/w FWCS3 rendering and FWCS4
rendering.


http://rapidshare.com/files/161403588/Use_FWCS3_Vector_Rendering_For_Selection.j
sf.html

http://rapidshare.com/files/161403590/Use_Newer_FWCS4_Vector_Rendering_For_Selec
tion.jsf.html

Thanks,
Arun