I'm using Kile 2.1 b4 on FreeBSD 8.1, installed via freebsd ports system.
Occasionally, the click to open file feature fails: cannot open a tex file
displayed in the side bar ('open file' mode) by simply clicking on it. When
this happens, I have to restart Kile to get it back to normal.
Btw, when will 2.1 stable be released? It has been quite a while since 2.1 b4
Same behaviour here: Kile 2.1 b4 on Xubuntu 10.10.