Tibbe's dashboard

well I just downloaded ubiquity
but I can't seem to get the interactive tutorial/help page
when I enter about:ubiquity into my adress bar I get taken to the page shown in the picture below

the full error reads
(in english the part before the directory would roughly translate to " XML-parse-error: error during processing of external entity reference"

XML-parsefout: fout tijdens het verwerken van externe entiteitverwijzing
Locatie: file:///C:/Documents%20and%20Settings/Eigenaar.WILLEM/Application%20Data/Mozilla/Firefox/Profiles/vwmsjvzd.default/extensions/ubiquity@labs.mozilla.com/chrome/content/about.xhtml
Regelnummer 8, kolom 5: %ubiquityaboutDTD;
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edit: worked around it by downloading the beta version instead of the release