Version:            (using Devel)
Installed from:    Compiled sources

Details:
For a folder with a large number of files extending over one page (ie, you have a scrollbar and you need to scroll down to see more of the files), selecting the Dolphin's folder area and typing the filename selects the file, but the scrollbar does not follow down to the selected icon.
This I observed some time back upon upgrading to KDE 4.2 beta 2

To reproduce:
1. Open a folder with many files (extending over a single page)
2. Type in any filename that is not shown on that visible page of icons.
3. Typing the name shows that the file is selected but you have to manually scroll down to view the selected icon.

For example, in the attachment, even though kde4 is selected (which was selected by typing in "kde"), the selected icon is invisible.