[jQuery] $(window).scrollLeft is not a function ... help! :o(

[jQuery] $(window).scrollLeft is not a function ... help! :o(

Hi folks,
I'm trying to use jdMenu for jQuery (which I have successfully used before), but
I'm getting the following errors when trying to use it this time around
(1.3.beta2).
When using the unpacked version I get:
   <span class="objectBox objectBox-errorMessage hasTwisty hasBreakSwitch">$(window).scrollLeft is not a function</span>
When using the packed version I get the following:
    <span class="objectBox objectBox-errorMessage hasTwisty hasBreakSwitch">missing ; before statement
... which then causes this error:
    </span><span class="objectBox objectBox-errorMessage hasBreakSwitch">$("ul.jd_menu").jdMenu is not a function</span>
Can anybody help? I really need this menu to work right now.
Thanks so much,
Chris<br clear="all">
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