Version:           3.4.0 (using KDE 3.4.89 (>= 20050615), compiled sources)
Compiler:          gcc version 3.4.3 20041125 (Gentoo 3.4.3-r1, ssp-3.4.3-0, pie-8.7.7)
OS:                Linux (x86_64) release 2.6.11-gentoo-r3

Konqueror cannot open files or directories that contain an opening rectangular bracket "[".

When I click on a file in a Konqueror window that has a name that contains a [, the application that is used to open it will complain that it cannot open it because it is a directory. It looks like Konqueror is calling the application with only the name of the containing directoy instead the file's pathname. (i.e. If I have a file "/x/y/z[.sxw" and click on it in Konqueror, OOo will complain that it cannot open "/x/y/".)

When I click on a directory icon for a directory with a name that contains a [, Konqueror will still display the directory I was just looking at, but this time it will only show the directories contained in that directory (including the one I just clicked on) and not the regular files which should be there. After I press reload, the directory is displayed normally again (with files and directories). 

This happens with KDE applications, non-KDE applications and the embedded viewer.
It does not happen if I right-click on the file or directory icon and select an application  or an embedded viewer from the list.
It does happen if I right-click on the icon and select "Open in new window".
It also happens if the file-/directory- name also contains a ], but not if it contains a ] but not a [.
It does not happen if I right-click on the icon and select file properties. (meaning I can edit the filename and remove the offending [, but that's not always desirable.)

I'm using UTF-8 as my system charset.