How can image title affect image corruption?

Recently I have had difficulty with only one of a number of gif images on my website. The image appears normal online, but if I download it with my FTP client, either it cannot be opened due to an LZW error, or else it appears completely black.  I have been experimenting, and it appears this behavior is dependent on the file name "index-title.gif".   I am mystified!  If I use a file name "indx-title.gif", the image can be uploaded and downloaded without these unwanted developments.  But a copy of the samefile, named "index-title.gif", will exhibit the symptoms which I mentioned.  Can you help me to understand/correct this?  The images in question are published at www.mauitradewinds.com/Experts   The index-title.gif file has been downloaded, causing it to become corrupted somehow, and then uploaded so you can examine it.
ddantesAsked:
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Dave BaldwinConnect With a Mentor Fixer of ProblemsCommented:
While the one image is wrong, the images you've posted don't bring up any errors.  It is possible that something corrupted the file in transmission though I didn't have any trouble downloading it.  If something is corrupting it because of the filename, then you will just have to use a different name until you can find the cause.
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OmniUnlimitedCommented:
Yeah, something must be happening in the program you are using to rename the images, because I was able to rename your indx-title.gif to index-title.gif without any corruption.  See attached:
 Renamed gif
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ddantesAuthor Commented:
Thank you for your comments.  The image does not become corrupted upon renaming it.  Only after uploading it to my web server, and then downloading it again, it is corrupted.  I don't mind using a different name for the image.  I would just like to understand how the name can make that difference.
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Dave BaldwinFixer of ProblemsCommented:
Does it happen every time you download it under that name?
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OmniUnlimitedConnect With a Mentor Commented:
To me it is obvious that on your webserver you have a programming platform that uses index as a reserved word.  Anytime you use reserved words for your applications outside of their intended use you will run into problems.
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ddantesAuthor Commented:
Yes, it happens every time I download the file under that name.  If "index" is a reserved word, I see how that could account for the problem.  I think I will just use a different file name.  That will require some editing of the pages which link to that file, but not too much work.  Thanks to all of you.
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