Version: (using KDE 4.4.1) OS: Linux Installed from: openSUSE RPMs While opening a directory in dolphins column view, an additional column opens up. If you now select or open a file in this column, it is not possible to change the directory simply by clicking on another directory in the previous column. Instead you have to click on the directory twice or sometimes even three times to change into this directory (this was working as expected in KDE 4.3.5). A similar behaviour can be observed, if you want to open files from different columns one after the other.
Thanks for the report, I could not reproduce this issue in KDE SC 4.5.0.