Firefox 4 Start-up Screen

I upgraded my Firefox 3.6 portable to Firefox 4.0 and then 4.01. Unfortunately my Portable start-up screen still says version 3.6 when it starts, although 4.01 does start up and run. After it runs and I check "About Firefox" under help it shows the correct version. I thought this would correct itself when I went from 4.0 to 4.01 but it did not.

While I know this may be just a silly annoyance is there a way to fix it without losing my settings, bookmarks and add-on's?

Thanks.