From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux 2.2.12-20 i686; en-US; 0.7) Gecko/20010105 BuildID: 2001010517 if a table has 'rules="groups"' and there are <col>s to create vertical lines and <tbody>s to create horizontal lines, and between these lines are more than two rows of cells, the horizontal lines appear broken. The area that would contain the horizontal line that is made invisible by the rules="groups" is white. Unfortunately horizontal lines share pixels with vertical lines. The error happens at the intersection. Reproducible: Always Steps to Reproduce: 1.Go to the page. Look at the lines. Actual Results: Table looks bad Expected Results: Table looks good :) The table lays out correctly in links and ie5. In NS4 the tbody and col tags don't work.

Isn't this a direct consequence of disabling the border collapse code?

Dup. Please reopen and spam me if it's not :-) *** This bug has been marked as a duplicate of 24113 ***

I disagree. This bug is not about the lines not appearing at all, which is what bug 24113 is about. It is about the lines appearing broken (parts of them are missing.) I think that if this bug is left in the duplicate state, the bug which caused the lines not to appear at all in some cases will be fixed, and this (cosmetic) bug will not. reopen?

Reopening. Since I can reproduce I will mark this new. But bug 24113 is dependant on bug 41262, so I am marking this too.

QA contact update

the testcase in the above URL worksforme, marking as such

Table looks good to me. Marking verified Build ID : 2001110708 Linux 7.1