So I try to use PIE.htc to render box-shadow for IE7/8. I set everything up according to the documentation, but it just won’t work, no shadows, whether in IE8 nor 7. I quatriple checked the documentation and demos on css3 pie, I googled a LOT and analysed my implementation, but I just can’t find the source of the problem. There’s another thread here about the same problem from two months ago, but no solution either. I really hope someone sees what I may have made wrong, oh and just to avoid useless comments, i already tried using PIE.php, doesn’t work either.
Some images attached for more information.
Inspect with IE Developer Tools

Getting the source directly

My CSS

That’s really strange, after some (random) adjustments it suddenly gets applied after a page load, but just in 1 of 10 times… and when it gets applied it destroys the layout of some buttons (they shrink in width without a reason). We will probably just scope the project down to shadowless buttons in IE8-…