[Google-Desktop] Regenerating index in Google Desktop

Hi,

Is there any way to regenerate the index ?

In my case, Google Desktop (GD) indexed some mails from my inbox. A
couple of months later, I archived those mails. Now, when I search for
them in GD, it shows me the list of mails but when I try to retrieve
them, it is unable to find them - presumably because it is looking in
the earlier location (the inbox file) rather than in the present
location.

The workaround for this would be to get GD to regenerate its index.

Any pointers most appreciated.

thanks,
venksj