Version: 2.0.80 (using KDE 4.1.0) Installed from: Ubuntu Packages OS: Linux I think the history summary (under the Miscellaneous tab in the element detail dialog): "This element was known to ancient cultures" has been switched with "This element has not yet been officially recognized by the IUPAC" and vice versa. Uus is the only element that should have the second, right? Due to the above mistake, it was supposedly the only one known to ancient cultures.
This was fixed in trunk (4.2) and 4.1 some days ago, another user reported on IRC. Can you confirm the bug is fixed? Thanks for the report.