LR 4.4 Upgrade - can't see export in CS5

I just upgraded to 4.4 and went to export a file to CS5 and got the "unable to render using Camera Raw 7.1" message.  I think I responded Render Using Lightroom (instead of Open Anyway), and checked the box to do that from now on.  Now when I export to CS5 it opens up the application but there is no file and LR doesn't even seem to got thru the export process  I tried reinstalling 4.4 but no change.  Anyone have an idea hwo to fix this?  Help!