Wierd undesirable transparent effect [SOLVED]

I downloaded a round table model and applied a texture skin to it in MED. I didn't attach any material to it ,but when I see it at runtime ,I can see the leg of the table when I look at it from upwards........

I mean that the table's head must hide the table's leg when you look at it from upwards ,a simple logic .......

Here's a photo indicating what I am talking about:




Here's the download link for the model:

I am the model!...click me!!

Set the texture to a 24bit format in Skin Properties (or use a material which enforces solid rendering if you want to keep the alpha channel for whatever reason).

Thnx