Hi, I tried to run CCD guider simulator but got the above message. I read an older threat concerning the same problem. The adress for downloading gsc catalog was given in this thread as launchpad.net/~mutlaqja/+archive/ubuntu/.../gsc_1.0.orig.tar.gz However this adress is not valid any more. So my question, where can I find the gsc catalog? Thanks in advance hajoRead More...