How do I create a web link from data

Yes, I am somewhat new to this...

I am trying to create a dynamic web link on a form that is derived from
field data in an access table. For example, my table contains data such as:

Field Name=Colors
Field Value 1: red
Field Value 2: blue
Field Value 3: green

I tried to write an expression using a bound control such as this: ="http://
www.abc.com/" & [Colors]

I then set the "IsHyperlink" property of this control to: yes

The form displays the proper output i.e. http:// www.abc.com/red

However; when I place the mouise cursor over the link and click; the link
does not work.

Am I missing something?

Thanks,