That's the problem with computer-based technology. One day, you're happy playing Rayman: The Great Escape, then you upgrade the OS and the oldies become distant memories.
EDIT: Installed Bandlab's Cakewalk. DX instruments still cause crashes. To be specific, I can add an instrument, pick a voicebank, etc. But as soon as I press the synth keyboard or press Play on the DAW, fuggedaboutit.