Version 1.033.5 DEB 8 package.Linux Mint 17.0 KDE 64Bit : APP Crashed after 90 minutes stacking/calibrating 157 Lights, 34Flats and 150 Bias frames. I made regular screen shots and include a few. Start was at 08:30, crash time 09:55 (No error, a crash into never, never land {No Marc no videoclip promotion ! :-)})