OpenLayers Vector Features issue in IE

We are using OpenLayers Vector Layer with Features in our application. Everything works fine in FireFox, but开发者_如何学Go in IE we are not able to find vector layer on the map. We are using OpenLayers-2.9 version.

Is this a bug or else we need to add any patch to to the code?

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What rendering methods did you implement. Old IE won't support canvas, you should specify fallbacks to VML http://dev.openlayers.org/docs/files/OpenLayers/Layer/Vector-js.html