erratic frame behaviour while selecting fonts

[Werner LEMBERG]

[cvs version 2008-08-11, gtk 2.10.6, running within KDE 3.5.5]

Starting with emacs -Q, I get image 1.  Selecting

  Options->Set Default Font->OK

(Sans, Standard, 12pt), I get image 2.  Repeating this I get images 3
and 4.

Very erratic...


    Werner


PS: Why is `Sans, Standard, 12pt' the default?  Starting emacs with
    -Q, I get a completely different (bitmap?) font -- and how can I
    select this bitmap font again with the menu?  In case this isn't
    (easily?) possible there should be an additional message in the
    font selection dialogue, giving a hint how to set up bitmap fonts.