Background Colour with null values

I am trying to change the background colour of a textbox in a table to
display one colour if the value is null and another if there is a value. The
data is an integer type and when using isdbnull the colour displayed for the
null value columns is the colour for a value, not the null colour. If am
using '=nothing' it is displaying the null colour for the values of 0.
I am using RS 2000 SP2Try using the VB.NET syntax of 'is nothing' instead of '=nothing'
Matt A