Scanned for malware lately?

Right-click one of those thumbnails and select Properties. See what extension the file name has. It's possible the file name lost its extension (eg, .jpg, .bmp) or the program that originally created these files has been removed from your system.

You could also right-click the thumbnail and choose "open with>choose program".
Select the program from the list and if you want this file extension to always be associated with that application, check the "always use" box.

Ron

When you select Properties for the thumbnail, it should show you the file name, eg myphoto.jpg or myphoto.bmp. The extension (.jpg, .bmp, .tiff, etc) tells you if they're image files or something else. If they're not image files, they can't be opened with an image viewer/editor. If they're not image files, post back their file extension so we can figure out what they are.

If they are images, right-click a thumbnail, select Open with>Choose program. Then pick whichever program all the other thumbnails open with, eg. Microsoft Paint, Adobe Photoshop, Jasc PaintShop, or whichever other image viewer you have on your system, other than the Dell program you tried.

You should try scanning your system for malware with:
Adaware, free: http://www.lavasoftusa.com/products/ad-aware_se_personal.php
Spybot Search & Destroy, free: http://www.spybot.info/en/index.html

Ron

Message Edited by RoHe on 03-09-2007 05:26 PM

Aahaaa! From the net:

Canon's ZoomBrowser EX software creates zbThumbnail.info files. The files are always there but normally they're hidden.

So I guess they're not supposed to be opened. Try this: Open the folder with these thumbnails. On toolbar, click Tools>Folder Options. Click View tab. Change the setting to "Do not show hidden files and folders". Click ok back to the folder. ZBthumbnail should be gone.

Don't know anything about hitman pro. I use Adaware and SpyBot with regular updates directly from their sites.

Ron