Sorry, perhaps I am very stupid. I do not know how to delete a line (condition) in the self-made filters or to change this line in the first tab in filters (filters). Even if I delete all self-made filters the first line with the condition is there and I cannot change this line.
Thank you very much for this great program and please excuse my bad English.
(kubuntu 10.04, datacrow 3.9.11
Sorry, I found my mistake. I changed the directory from opt (root) to home and therefore the backup files owned to root. I changed the rights and now I work with the filters.