I have a similar problem to the one described in the initial post. On my main blog I use this plugin for almost a year now and I have no issues. But when I installed it on a new blog I found that it publishes the new posts on both the fanpage AND my personal profile.
I have the "See all pages" option ticked and I have selected the fanpage to which i want it to post. In fact, I double checked my settings comparing them to those of the other blog and they are the same.
Any ideas why it keeps posting on my personal profile as well? Perhaps I am missing something, but I can't find out what...