I have downloaded and installed V3.7.4. but I was disappointed that although the bug fix list for V3.7.4 shows that it fixed the problem of downloading data files. all of the below still Give the error :- " Could not install "********" file not found. * Tycho-2 Star Catalog * Inline thumbnail images * NGC Images displayed in the details window * IC Images displayed in the details window * Common Images displayed in the details window