Question o xpath

Hello again :)

I'm hitting an issue... hope someone can help me. Say I have this data:

***snip***
<file name="04_Rush_Hour_Wheels_of_Progress.mp3" size="5.51 Mb"
time="Dec 13 13:36 2006">
    <comment>6:1, 128 kbps#44100Hz, Joint stereo</comment>
        <mp3tag artist="Andy Brick" title="Wheels of Progress"
album="SimCity 4 Rush Hour Soundtrack"  year="2003"></mp3tag>
</file>
***snip***

if I do a xpath search like this, I get a result:

>>> o.xpath('//*[ contains( @*, "Andy" ) ]' )
[<Element mp3tag at 977940>]

but if I try to search for this string:
>>> o.xpath('//*[ contains( @*, "SimCity" ) ]' )
[]

...I get no result.

Is the problem on the xpath query ? What am I missing here ? I thought
" @* " is supposed to look at all tag attributes ?


thanks,
--
Paul Eipper
Brasil