> I compiled lyx 1.5.4 it works well. > > I am surprised why lyx 1.5.1 "suddenly" stopped working, it worked before. I > do not know what changed, but I am only a user not an admin of the machine.
maybe some libraries against which lyx was linked changed meanwhile on that machine (this could be checked when you try to compile 1.5.1 again, whether the problem disappears). anyway it looks 1.5.4 is working so i guess its not worth to investigate the issue more. pavel