HVmenu locks itself in IE5

[Big Ben]

When I first load my page in IE5 everything is fine, but after I've either clicked on a link in the HVmenu or any other link on my page the HVmenu stops working. It's like you can see it but it's not really there...

What have I done wrong? How do I resolve this problem?
My page

Please help...

[Big Ben]

IT's solved

Don't bother. I did fix it with onload="javascript:{if(parent.frames[0]&&parent.frames['navbar'].Go)parent.frames['navbar'].Go()}"

See ya!