I started out playing the tutorials and thought, "OK, this is not exactly rocket science". Then I went to career mode and was off to a good start using less complicated rockets. Finally, i have spent the last 8 hours trying to get even a slightly more complicated ship to remain stable to no avail. Ive searched threads and have seen the suggestions to turn SAS on. However, from what I can tell, SAS is something you cant get until you unlock quite a few research levels to get to. But with the trouble I have putting together stable ships I will never advance that far in career mode. On a side note, I did go to sandbox mode and attached an SAS ring to a few ships I had previously tried to put together and this made the flights almost easy. Ive messed with with the center of mass and all that alot and just cant seem to pull off a ship thats gets me over 20,000 meters elevation in career mode. Seems almost impossible to get anywhere from scratch in career mode, does anyone agree with this.