Just wanted to report some crashes after an upgrade. I have installed both Nebula x86 and x64 on my win 8.1 machine (8 core i7, 8gb ram) running both Cubase 6.5 x86 & 7.5 x64. Usually it works fine. Last week I upgraded from 1.3.839 to the most current version, 1.3.903. Problems. Crashes my old x64 session files like crazy. I reverted back today with a clean install of 1.3.839 - no problems anymore.