Category: Windows
by Dennis Faas, infopackets editor
http://www.infopackets.com
Ed B. from Long Island, New York writes:
" I enjoy your newsletters very much! They're very informative
and easy to read. I've seen a lot of other similar newsletters, and
yours definitely rank among the very best of them.
My question:
I use Windows XP Pro and save a lot of graphics on my hard
drive (the usual .GIF, .JPG. and some .BMPs). When I view the
folders in Windows Explorer (thumbnail or filmstrip mode), some of the
files don't show the thumbnail preview image, and Windows tells me No
Preview Available.
I don't change the file extensions when I save the
graphics, so why does Windows show the preview thumbnail on some and not
others?? My techie friends are all stumped. Any ideas?
Thanx
for doing what you do & keep on truckin'! "
My Response:
I have XP Pro, too, and tried everything I could to
reproduce Ed's problem ... but could not.
My best guess is that Ed has
accidentally saved some images with the wrong file extension. I have
done this in the past when converting an image format from .JPG to .GIF with
Paint Shop Pro (PSP). Many times, I save the file name and include the
new .GIF extension, but forget to change the format under the pull-down
menu.

PSP then saves the file as a .JPG, even though I've inadvertently changed
the file extension to .GIF. Saving an image with the incorrect file
extension would definitely make the file type unreadable by Windows
(assuming that Windows uses file extensions to measure the type
readability).
Anyone have a better solution or suggestion? Email me
below. 