Thanks for the reply. What you said was right, the menu is has this problem in Chrome and Firefox 4. Its working great in other browsers like Opera and Safari.
I’m using latest versions of Purity and i guess the Framework is also the latest (version 2). I downloaded the framework from : here. But in my plugin manager, it is showing the name of plugin as JA T3 Framework. Does it show the version number also in the plugins manager?
Is this an incompatibility issue with chrome or is it not working well only in my particular case?
Anyway, thanks for letting me know that its working in other browsers. Hope anyone suggests solution for making it work in chrome too.