Animations Not Exported From Blender

I have added some simple animations to a dice, and exported to .x format for inclusion in my game being developed with the XNA platform. The problem I have is that the animations is not been exported, I can inspect the varaible that stores the animations data, and the number of animations associated with the varaible is zero. Does anyone have an idea of what my problem is and why animations are not being exported from blender using the .x format. am new to blender, so your help is much appreciated.