The assembly that we are using for WebDataMenu is:

<add assembly="Infragistics2.Web.v9.1, Version=9.1.20091.2040, Culture=neutral, PublicKeyToken=7DD5C3163F2CD0CB" />

The grid and asp:menu is showing faulty in IE8, if we add webdatamenu in the project. We are using webdatamenu as a context menu of ultrawebtree. Here is how the asp menu looks like in IE8: (no item is available). (it happens only if we add webdatamenu as a context menu with the tree):

Where as in other browsers (IE7, FF3.5, and Safari4) it looks like this: (all items are available)

Also, the grid button styles change in IE8:

where as the buttons look like this in other browsers:

Both the ASP: menu, and the ultrawebgrid buttons look ok, when we use Ultrawebmenu as a context menu with the ultrawebtree. But, whenever we replace the ultrawebmenu with the "webdatamenu" as a context menu with the "ultrawebtree", it causes problem as above (only in IE8). Why is it working ok in all other browsers (IE7, FF3.5, Safari4), but not working in IE8? I've been trying to get a solution for this for some time now, and so far I did not find any way. I would appreciate any help/ suggestion. Thanks.