Mobile Tools breaks CCK field display configuration

Added screenshots.

Also, does this look like it's related, despite the D7 tag?
http://drupal.org/node/844676

Nope, I've had the display field settings configured properly this whole time.

My content type is called Profile, though I have other content types with the same problem. I have one image field called user_image which is configured to display something on both the full and teaser node. Screenshots attached.

I've tested the logged in/out and I have the same symptoms during both.

And double checked my permissions, not seeing any issues there. There are very few field and image permissions, we're not using any field level access permissions or anything.

I checked that, too. Anon and auth users are given permissions to see all derivative files generated by imagecache. I have tried removing the permissions to see all those derivs and still have the same result. See permissions screenshot.

We are not using private files.

If you really believe that this is not an issue with Imagefield itself, are there other issues out there where fields would ignore the field display configuration intermittently? I've thought it could be a problem with a custom node-xx.tpl.php file in my theme, but after testing that I didn't find any relationship. I've searched d.o and google in a big way for anything that sounds like this and I turn up nothing.

Checking out the theme issue right now. A switch to Garland does not solve the issue so I don't think that the display is overridden in my theme layer, see the screenshot. This is an intermittent issue, some browsers on some machines work, same browsers on other machines fail.

See also the code that is calling the display of the file type, not the display of the image size that I've selected for the node like seen in the previous screen shots.

<div class="field field-type-filefield field-field-imagefield">
 <div class="field-items">
   <div class="field-item odd">
     <div class="filefield-file">
      <img class="filefield-icon field-icon-image-png"  alt="image/png icon" src="http://cctvcambridge.org/sites/all/modules/filefield/icons/image-x-generic.png" />
         <a href="http://cctvcambridge.org/files/imagefield/Picture 5_19_0.png" type="image/png; length=613256">Picture 5_19.png</a>
     </div></div></div></div>

Going to check the contributed modules next.

Quicksketch, thanks for walking me through this. Here is what I learned.

It was a browser related issue. I had been experimenting a few weeks ago with methods to theme switch to a mobile theme by detecting the browser of visitors. I was working with a recipe of Mobile Tools and Browscap to do it. You were right that one of the contributed modules I had enabled was messing with the field display output, disabling Mobile Tools brought the imagefield displays back to life in some browsers. I think Mobile Tools was detecting browser types and freaking out the fields.

To the Mobile Tools module, I noticed that the field display settings of many of the CCK fields I had were also breaking in some browsers. Fields that were supposed to be hidden on the node display were actually visible, not just the image fields. I think the Mobile Tools module has an issue with overriding the output of CCK fields because of some freaky stuff it does with browser detection. I threw up some screenies of the only settings pages I worked on between Mobile Tools and Browscap, but I am not going to troubleshoot any further on this issue since my original problem has been solved. I'll let the maintainers and users of Mobile Tools take it from here.

Sorry, had to take a long route to change the module and version of this issue. D.o wouldn't let me do it in one step.

Screenshots, as promised from #10 above.

Sheesh. Let me remember.

I know I was experimenting with:
http://drupal.org/project/mobile

And when I ran into trouble, I customized a copy of Garland as a base for a new mobile theme - thinking that Garland was pretty durned stable. No dice, no matter the theme I used as the mobile version, the fields we're junked up. With quicksketch's help we found that the problem was the mobile theme switching module instead.