[jQuery] [BUG?] .hover

[jQuery] [BUG?] .hover

Hi everybody!
i'm not sure if it's my missing knowledge or if it's a bug:
i utilize .hover to change some css values, like this:
$('E').hover(function(){
         $('E').css("foo","bar");
         });
onmouseout of the element with the :hover attached css values wont
reset and i get a javascript error (ff 1.505 ppc, jquery svn 165):
"g has no properties" jQuery.js (line 1813)
    "handleHover" jQuery.js (line 1813)
    "anonymous" jQuery.js (line 1383)
same error in safari 2.0.4 (419.3)
here is a link to a testpage: http://noburo.net/temp/jquery/
hover_test.htm
i coded the same functionality with .mouseover and .mouseout, but
this also is quite quirky since it doesn't fire the mouseout event
occasionally and worse it makes the reaction of the (css) :hover
extremly slow.
see http://noburo.net/temp/jquery/mouseover_test.htm for a test-case.
any input on this is very welcome!
thanks & kind regards,
Daniel :)
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