i debug in ie10 but ie7, ie8 modes, but rounded corners in menu and... figure only after reload seem, can you check in your machine?
i use selectivzr, jQ, pie
Can you rephrase the question a little as some of the meaning was lost in translation
If you mean that you are not getting round corners in IE8 then the first thing to try is to check your htc file is where you say it is. I couldn't find it when I looked.
However, why bother with round corners in old browsers anyway now that IE8 (and under) usage is very low?
when i have a rule in html embeded how I refer htc file and how when in /css/styles.css the htc reference?
The css3pie site has a step by step example that shows how to use the htc file. You basically upload the htc file to your server and then reference it in the css.
border: 1px solid #999;
You will notice that they use an htc file which can be seen at this link (you will be prompted to download). Where is the htc file in your site? You should be able to link to it just to check its where you think it is.
There may also be a server issue with htc file and you may also need to do this to the ht access file.
Make sure all the above is correct before looking at other possible causes to the problem.