(2017-01-24, 16:39)Magnus Forsberg Wrote: You could try and rename (or delete) the file "datheaderini.xml" in C:\user\username\documents
You'll loose all your settings in the program, but it should give you a fresh restart.
There is an issue with the downloaded ldconfig.ldr file, for example lines with LEGOID 311/227 and LEGOID 179/296/131/315 are generating the errors in my case.
When removing the double LEGOID number entries in the file I could use DATHeader again.