today i installed build 39. I have VS 2010 and VS 2011 Beta installed and din't remember that i had installed the previous buld also in VS 2010. So i only selected to install in VS 2011 bet. A popup dialog appeared which points me on naming conflicts because of an already installed product. After this i decided to abort the installation. I clicked the "Abort" button but nothing happened. R# was installed completely. I had to deinstall it twice and reinstall to get a clean installation.