Trying to figure out why Darktable will no longer start, I started it from the command line and get: "darktable: symbol lookup error: /usr/lib/x86_64-linux-gnu/libcolordprivate.so.2: undefined symbol: cmsGetContextUserData". Everything's installed, up to date - for Debian: it's actually quite a bit behind. I'm really really handicapped without Darktable - so I guess I'll…