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The site doesn't validate, and I guessed that maybe a problem was the lack of width="x" height="y". I corrected this by adding the parameters for the main problem gif which was making things look seriously ugly, and now this gif shows up most of the time, and never displays the box with the x when it doesn't show up. However, there are also topic icons in various sizes, and I could program the script to define height and width, but would really prefer not to if there was some way to go around this.
Site is hosted on Apache, Free BSD, PHP 4.3. Haven't had the missing gif problem in Mozilla or Konqueror on Linux, only ie6 on Windows. I'd like to try it on ie5.x but I read that XP doesn't allow you to install old versions of ie if you already got an ie. How do you all check your sites for old browser issues?
forgot to mention: other sites also show on my 'puter (with ie6) without gifs, like the thread listing on this site (noticed it also uses gifs w/o specifying height and width).
[edited by: mincklerstraat at 4:58 pm (utc) on May 19, 2003]
At any rate, designating width and height did help.
Yup, assigining width and height attributes to all images is a good practice. That way your layout isn't jumping all over the place as the images are loading. When you assign width and height, a placeholder is designated on the page using those dimensions.