Internet Explorer 5.5 Adds Scan Lines Between JPEG Images

If JPEG images are tiled horizontally, Internet Explorer 5.5 may add an additional scan line between the images that matches the background color in Internet Explorer. This occurs only during the download of images from a site. If the images are cached or are on the hard disk, this problem does not occur. The problem does not occur with .gif images.

This problem does not occur with .gif files. If possible, use .gif files as a workaround.

NOTE: If the jpg images are pre-loaded using jScript, the extra scan lines may disappear after the page finishes downloading.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.