Paste Not Working Rated 3 out of 5 stars

I use Firefox 3.5(and I have tested this extension on 3.6 and 4.0 b7), this extension is very good, but it realy breaks the paste function. I have to use Ctrl+V. But occasionally, the paste function is ok. And after a while, it become broken again. I don't know why. but I am sure that this due to InstaClick. Please fix it. Thanks!

This review is for a previous version of the add-on (1.7.1-signed).