Hi,
Assuming you are using VB 2005, no I cannot explain it. Perhaps some sort
of bug. If you are using VS 2003, the you can download DesktopSerialIO from
my homepage (I also have a DecodeGPS dll that you may want to use). There
also is a VS 2005 version of DesktopSerialIO.dll that you can use as a
work-around. These all are free.
Dick
--
Richard Grier, MVP
Hard & Software
Author of Visual Basic Programmer's Guide to Serial Communications, Fourth
Edition,
ISBN 1-890422-28-2 (391 pages, includes CD-ROM). July 2004, Revised March
2006.
See
www.hardandsoftware.net for details and contact information.