Can I do anything to improve the stability of synfigstudio?
If you’re running on a Hyperthreading or multi-core CPU (e.g Pentium 4 with Hyperthreading or Intel Core2 Duo or Quadcore, etc.) then you may find Synfig is more stable if you restrict it to run on only one processor. Since version 0.62.01 the stability under Windows has increased noticiably. The single thread renderer option has been enabled by default in Synfig Studio.