Hey Bill, Rob asked me to look at this. I can’t immediately identify the issue, but perhaps I can start getting us moving in the right direction.
A little background on the icons. The actually iconography of Skuid icons in all themes but classic are just font awesome icons. This probably not a big surprise. The behavior that your are describing is likely symptomatic of a the font awesome font file not being loaded in by the browser. That being said, the item we would want to find in the network tab is a file labeled “fontawesome-webfont.eot” item. If it’s not there, then that means the font isn’t actually being loaded, and you get no icons.
Now, if the fontawesome font file is not being loaded, then I can only speculate as to why it wouldn’t be. I do know that some browsers will not load a resource (in this case a font) unless it sees evidence that it is needed in the page. This is an optimization technique targeted and reducing needless bandwidth usage. Perhaps your configuration of IE has some sort of setting pertaining to optimization in this realm?
That would be my first area of inquiry, but I don’t want to go any further with speculative solutions until we can confirm that the font file is not being loaded. At that point I might have an idea or two for workarounds.