Dynamic text interfering with animation

Hi,
Ive created these buttons - http://www.easyflashsite.co.uk/buttonscs3.swf

Now the rollover and out animations play well UNLESS the mouse is over the text. Try it out.
Im using dynamic text for the buttons and the code i am using is below.
Any Ideas?

b1.link_mc.MyText_txt.text="Home";
b2.link_mc.MyText_txt.text="About";
b3.link_mc.MyText_txt.text="Services";
b4.link_mc.MyText_txt.text="Portfolio";
b5.link_mc.MyText_txt.text="Contact";

b1.addEventListener(MouseEvent.CLICK,clickHandler);
function clickHandler(event:MouseEvent):void{
navigateToURL(new URLRequest(" http://www.easyflashsite.co.uk"));
}
b1.addEventListener(MouseEvent.MOUSE_OVER, rollOver);
function rollOver(event:MouseEvent):void {
this.b1.gotoAndPlay(2);
}
b1.addEventListener(MouseEvent.MOUSE_OUT, rollOut);
function rollOut(event:MouseEvent):void {
this.b1.gotoAndPlay(14);
}


b2.addEventListener(MouseEvent.CLICK,clickHandler2);
function clickHandler2(event:MouseEvent):void{
navigateToURL(new URLRequest(" http://www.alanwallace.co.uk"));
}
b2.addEventListener(MouseEvent.MOUSE_OVER, rollOver2);
function rollOver2(event:MouseEvent):void {
this.b2.gotoAndPlay(2);
}
b2.addEventListener(MouseEvent.MOUSE_OUT, rollOut2);
function rollOut2(event:MouseEvent):void {
this.b2.gotoAndPlay(14);
}
b3.addEventListener(MouseEvent.CLICK,clickHandler3);
function clickHandler3(event:MouseEvent):void{
navigateToURL(new URLRequest(" http://www.easyflashsite.co.uk"));
}
b3.addEventListener(MouseEvent.MOUSE_OVER, rollOver3);
function rollOver3(event:MouseEvent):void {
this.b3.gotoAndPlay(2);
}
b3.addEventListener(MouseEvent.MOUSE_OUT, rollOut3);
function rollOut3(event:MouseEvent):void {
this.b3.gotoAndPlay(14);
}


b4.addEventListener(MouseEvent.CLICK,clickHandler4);
function clickHandler4(event:MouseEvent):void{
navigateToURL(new URLRequest(" http://www.alanwallace.co.uk"));
}
b4.addEventListener(MouseEvent.MOUSE_OVER, rollOver4);
function rollOver4(event:MouseEvent):void {
this.b4.gotoAndPlay(2);
}
b4.addEventListener(MouseEvent.MOUSE_OUT, rollOut4);
function rollOut4(event:MouseEvent):void {
this.b4.gotoAndPlay(14);
}
b5.addEventListener(MouseEvent.CLICK,clickHandler5);
function clickHandler5(event:MouseEvent):void{
navigateToURL(new URLRequest(" http://www.easyflashsite.co.uk"));
}
b5.addEventListener(MouseEvent.MOUSE_OVER, rollOver5);
function rollOver5(event:MouseEvent):void {
this.b5.gotoAndPlay(2);
}
b5.addEventListener(MouseEvent.MOUSE_OUT, rollOut5);
function rollOut5(event:MouseEvent):void {
this.b5.gotoAndPlay(14);
}


Thanks
Alan