Problem with displaying table height

I made one table with 1 rows, 2 cols.

Second column is splitted on 3 rows.

In every row I putted some colour. First and second row has specific height
and third has no height, because I want it to grow with the text.

Firefox and Opera shows that correct, I mean on row's height and Internet Explorer has problems with that.

Does anyone knows what is it about, what is the problem ?

Here is the link : http://www.hr-fitness.net/table2.htm

 

Try filling in the last row with the remainder in height differential.

830-50-50 = 730

 

I dont know what are you saying..please explain me.

830px is width, not height.