Unable to scroll pages vertically on Google Chrome "12.0.742.100"

Unable to scroll pages vertically on Google Chrome "12.0.742.100", using the scroll-bar thumb, however I can use mouse scroll and also scroll the page using the up and down arrow keys.

Important points:

1. If I re-size the window such that there is a horizontal scroll-bar, the vertical scroll-bar starts to works fine, but if I re-size/there is no horizontal scroll-bar, the vertical scroll-bar thumb fails to work.
2. If I stop loading the page/try to scroll while the page is loading, it works fine.
3. The issue is reproducible on almost all the pages of my client's website "http://www.charlotterusse.com/", like:
   • http://www.charlotterusse.com/home/index.jsp
   • http://www.charlotterusse.com/category/index.jsp?categoryId=4078197
   • http://www.charlotterusse.com/family/index.jsp?categoryId=4335463&cp=4078197
   • http://www.charlotterusse.com/category/index.jsp?categoryId=4238904
   • http://www.c开发者_如何学Charlotterusse.com/category/index.jsp?categoryId=4238909&cp=4238904

but, the following pages scroll just fine:

• http://www.charlotterusse.com/sitemap/index.jsp
• https://www.charlotterusse.com/checkout/index.jsp?process=login
• http://www.charlotterusse.com/helpdesk/index.jsp
• http://www.charlotterusse.com/storeLocator/index.jsp
• http://www.charlotterusse.com/giftCenter/index.jsp

It may be due to some conflict with Flash or JavaScript, but the site works fine on all other browsers and not chrome.

Please advice what could the issue be and how can it be fixed.

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Ultimately found the solution for this issue. There was a JS code which was hindering the normal mousedrag actions.