Attachment having Photo does not open in one computer but opens in another

I have a photo (.jpg) as attachment in Yahoo mail. I can see the photo thumbnails at the end of the mail. When I click on the attachment and click on Open button, Photoeditor opens and displays the message “Preview not available”. When I Save the picture and then try to open, I am able to view it.
The same attachment can be opened in another machine.
Can anyone tell me what could be the issue.
I am using IE 7.0 as browser.