User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-GB; rv:1.8.1.10) Gecko/20071115 Firefox/2.0.0.10 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-GB; rv:1.8.1.10) Gecko/20071115 Firefox/2.0.0.10 I have installed a number of themes and none of them work in the new version, when I download new ones I get the following error message Firefox could not instal the file at http://addons.mozilla.org/en-US/firefox/downloads/file/21322/areo_fox-1.0.2-fx.jar Because:Unexpected installation error, Review the Error console log for more details -203 Reproducible: Always Steps to Reproduce: 1.Go to https://addons.mozilla.org/en-US/firefox/addon/6070 2. selected the INstall now button 3. A popup window opens and displays the desired theme 4. I select "Install now" 5 the error appears Actual Results: Firefox could not instal the file at http://addons.mozilla.org/en-US/firefox/downloads/file/21322/areo_fox-1.0.2-fx.jar Because:Unexpected installation error, Review the Error console log for more details -203 Expected Results: New theme

I have tried to install the google search box and the same message comes up except the url is different I have installed firefox version 2.0.0.11 and still the error occurs

What's the account type of the Vista user you're using?

I have Vista Business, and I'm logged in as an administrator with full access rights,

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