cannot browse file system at all

[Jabal 33]

Binary package hint: thunar

Hi!

I'm using Xubuntu 10.04, Thunar 1.0.1.
My problem is that since upgrading from 9.10, Thunar is
unusable for browsing my file system.

1, I open Thunar
2, Double click on a directory -> changes dir, contents are shown
3, I choose a different location from the left bar, e.g. my home directory
4, If I double click any listed directory nothing happens. No error message, no directory change.
5, I can change only to the directories listed on the left, but double clicking on any item on the right
does nothing. I cannot even select an item, it is totally dead/disabled
6, Close and reopen Thunar
7, First attempt to change directory or select an item: OK
8, Second attempt: nothing happens