tikipedia.css causes jscalendar problems

The tikipedia.css theme causes the <span class= "highlight_word_0">jscalendar</span> tracker field to be inoperative for trackers, unless the tracker is used from the wiki tracker plugin (even then, the calendar only functions if
its parameters are set to "d,1975,2061" for example, rather than just "d,,"). The <span class= "highlight_word_0">jscalendar</span> may be popping up on the trackers, but obscured behind other css elements (?).

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Tikipedia 3.0 Theme
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In Trackers, the jscalendar field (control)
does not work, as the jscalendar pops-up
behind the tracker form, rather than on top
of it (see screenshot). In Tikipedia 2.x
theme, this same problem occurred, with
the added problem of the pop-up calendar
being stretched the width of the tracker form,
and anchored to the right hand side of the
browser window. Tikipedia 3.0 theme only has
the pop-up-behind problem (other two problems
don't occur).

Have a screenshot but CANNOT upload it using
provided field! (?)