Thanks for your reply, and for taking the time to look at it.
I'm quite happy with the ATL and it seems like significant workaround to implement a linechart with a dashboard to simulate the functionality of ATL. It looks to me that this is related to the IE layout engine and I am keen to find a simpler solution to have it rendered correctly on IE. For all other browsers the ATL are rendering just fine, so I will continue to play around with this for IE.
Are there anyone else who is facing this issue?
Cheers