[minor bug] dir icon not changed after cdup

[cynix]

as u can see from the attached screenshot, the dir icon is not changed when i select parent dir.

in the screenshot, the images dir was previously selected. when i selected its parent dir, its icon is still an open folder, and the icon of the parent dir is a closed folder.

[Linkster]

please include your os, build version, etc...i'm running winxp with 2.0rc2 and it works fine.