Bug in Adobe Reader when displaying lines?

Hi there!
I'm creating a complex document with Apache FOP, using tables with visible and hidden borders. Although, all lines have the same attributes, Adobe Reader renders them in different thikness. In the FOP forum, there has been a lot of discussions about this issue. Conclusion is, that it is not supposed to be a FOP bug. Some other readers render the created documents well. You might want to read about it here: http://apache-fop.1065347.n5.nabble.com/Cell-border-rendering-error-thicker-with-number-co lumn-spanned-tp17999p37229.html. Displaying on screen, it is possible to avoid this by not using "Enhance thin lines". However, printed documents allways show these lines in different thikness. To avoid this being a FOP bug, there is a simple example document, producing the bug with Adobe Reader. It can be found here: http://mail-archives.apache.org/mod_mbox/xmlgraphics-fop-users/201211.mbox/raw/%3c5095C97A .[email protected]%3e/2. The document is hand crafted. To see the issue, turn on "Enhance thin lines" and try different zoom values. If this document contains incorrect contents, I'll be happy, if you let me know.
Regards.

You will not get a response from the bug report but they DO read the reports and use them to make future updates.
I notice a lot of the other issues reported here have not been responded to either.
Is that the normal process?
I haven't noticed that at all. In fact, most posts here get results as long as the poster gives enough details. Keep in mind that the answers are coming from fellow users and it is not an official avenue to contact Adobe personnel.

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