css button and a:active in IE7

[chabates]

I am trying to make css buttons and I am using -

a:hover

and

a:active

The result is the images changes when hovered over, and changes when clicked upon but it does not change back when the mouse is unclicked in IE7, but this is working in FF. I have looked at some other sites and notice this problem aswell. what am i missing?

[cochlear]

Did you specify colours for a:link and a:visited?

[chabates]

i'm using images that change on hover and click and i'm using a:hover and a:active for this....

the problem being and seems to be for alot of sites i've looked at that ie7 doesn't change the image back to the original after the click.

anyone else experience this problem or know anythign about it?