Feelthere ERJ145 PIC and Vista

Does anybody have any problems with this airplane and Vista? I"ve downloaded to my vista laptop and has caused it to crash. it will work, but i can't save it as default and have to start other aircraft first and then change the airplane after starting the flight. after exiting the flight fs9 crashes. i verified it's the erj because i did a fresh fs9 install with my pmdg 737 and it worked until i added the erj. anybody have any ideas?