This usually happens if you have the size of a container set, and the child is larger than the container.  So for instance, if you set your grid height to 500px, and set the framestyle height to 800px (or didn’t set it at all).  Sometimes this can be fixed by setting a “position:relative” on the grid’s css class, which will force the grid to have a proper layout.  Also, verify that you have a height set for both the Grid and the FrameStyle.  If none of that works, I’d recommend contacting our Developer Support group (http://ko.infragistics.com/gethelp)  Also, a good dom explorer like Firebug for Firefox or IE Developer Toolbar for IE will be a big help when debugging this.  They’ll allow you to change CSS values on the fly, so you can see what changes are necessary to fix the display.

Hope this helps,