encryption keys generation takes forever Rated 4 out of 5 stars

It is one of must have addons - if I could only make it work again...Today I had to use it due to a power failure but I could not find the right click menu for it ! After some frustration I noticed the grayed out icon and started generating keys (there should have been a popup window when this became necessary). Never finished. I even uninstalled and reinstalled but still no joy. OK, I apologize if there is a fault on my part - but still I cannot figure out what this could be - do I have to delete some files ? What could have probably caused this ? Google was no help this time

Thanks

PS : XP SP3 Pro - FF5

This review is for a previous version of the add-on (2.2.1-signed.1-signed).