"I downloaded our GEDCOM, opened it up in FTM 4.0, selected all fields to
import - letting the fields default to FTM's first choice - and came up
with  4,272 errors.  I'll check it out and see if I can identify the
problem.   Yep, I can...
#1)  FTM doesn't like all Caps in the names;
#2)  FTM reports missing dates as errors;
#3)  FTM doesn't like nicknames entered in the Name Field.
In other words, while there may be a couple of "real" errors in the
conversion, it actually came into FTM 4.0 JUST FINE!!! "

The author imported the GEDCOM file into FTM 4.0 with the default options and received the errors listed below. You may edit the GEDCOM file to reduce the things which FTM does not understand. We do not provide a file for the FTM non-standard conventions. Finally, this file is for private use only, even any edited editions of the basic file are protected by copyright laws and may not be given to commercial ventures such as Broderbund.

Line 91 : Tag: PROB, has not been assigned to an FTM field, lines with this tag are ignored.
Line 683 : Tag: BAPM, has not been assigned to an FTM field, lines with this tag are ignored.
Line 901 : Tag: BURI, has not been assigned to an FTM field, lines with this tag are ignored.
Line 1655 : Tag: DATE, invalid date: 1705/6, line ignored.
Line 1697 : Tag: DATE, invalid date: BET 1792 AND 1794, line ignored.
Line 1975 : Tag: DATE, invalid date: 1779/80, line ignored.
Line 2059 : Tag: DATE, invalid date: 1789/90, line ignored.
Line 2063 : Tag: DATE, invalid date: BET 1860 AND 1870, line ignored.
Line 2081 : Tag: DATE, invalid date: 1791/92, line ignored.
Line 2101 : Tag: DATE, invalid date: 1792/93, line ignored.
Line 2215 : Tag: DATE, invalid date: 1776/77, line ignored.
Line 2219 : Tag: DATE, invalid date: BET 1850 AND 1860, line ignored.
Line 2235 : Tag: DATE, invalid date: 1787/88, line ignored.
Line 2445 : Tag: DATE, invalid date: 1824/25, line ignored.
Line 2461 : Tag: DATE, invalid date: 1825/26, line ignored.
Line 2481 : Tag: DATE, invalid date: 1827/28, line ignored.
Line 2761 : Tag: NOTE, has not been assigned to an FTM field, lines with this tag are ignored.
Line 3033 : Tag: DATE, invalid date: BET 1814 AND 1819, line ignored.
Line 4727 : Tag: DATE, invalid date: ABT 1800/1, line ignored.
Line 4989 : Tag: DATE, invalid date: ABT 1810/11, line ignored.
Line 5119 : Tag: DATE, invalid date: BET 1774 AND 1776, line ignored.
Line 5407 : Tag: DATE, invalid date: 1819/20, line ignored.
Line 5411 : Tag: DATE, invalid date: 1864/65, line ignored.
Line 5431 : Tag: DATE, invalid date: 1806/7, line ignored.
Line 5535 : Tag: DATE, invalid date: by 1841, line ignored.
Line 5615 : Tag: DATE, invalid date: 1813/14, line ignored.
Line 5635 : Tag: DATE, invalid date: 1821/22, line ignored.
Line 5753 : Tag: DATE, invalid date: 1852/53, line ignored.
Line 6385 : Tag: DATE, invalid date: 1850/51, line ignored.
Line 6401 : Tag: DATE, invalid date: 1853/54, line ignored.
Line 8133 : Tag: DATE, invalid date: BET 1810 AND 1826, line ignored.
Line 8491 : Tag: DATE, invalid date: 1864/65, line ignored.
Line 9769 : Tag: DATE, invalid date: BET 1817 AND 1821, line ignored.
Line 9791 : Tag: DATE, invalid date: BET 1817 AND 1821, line ignored.
Line 10099 : Tag: DATE, invalid date: BET 1860 AND 1870, line ignored.
Line 16651 : Tag: DATE, invalid date: BET 1557 AND 1567, line ignored.
Line 16721 : Tag: DATE, invalid date: BET 26 MAR 1573 AND 1574, line ignored.
Line 18393 : Tag: DATE, invalid date: BET 1811 AND 1812, line ignored.
Line 18437 : Tag: DATE, invalid date: BET 1806 AND 1807, line ignored.
Line 18545 : Tag: DATE, invalid date: BET 1753 AND 1757, line ignored.
Line 18569 : Tag: DATE, invalid date: BET 1759 AND 1765, line ignored.
Line 18681 : Tag: DATE, invalid date: by 1701, line ignored.
Line 18729 : Tag: DATE, invalid date: BET 1734 AND 1736, line ignored.
Line 18935 : Tag: DATE, invalid date: BET 1727 AND 1728, line ignored.
Line 19975 : Tag: DATE, invalid date: BET 1613 AND 1614, line ignored.
Line 19979 : Tag: DATE, invalid date: BET 1663 AND 1670, line ignored.
Line 21591 : Tag: DATE, invalid date: by 1763, line ignored.
Line 24695 : Tag: DATE, invalid date: by 1521, line ignored.