Problem with web sites.

Hi,

I am helping my friend out with there web sites not displaying correctly but I am getting inconsistent results. So looking for suggestions on how to resolve this. I want to make sure I can browse across the various IE versions but am seeing some strange results:

Here are the two web sites:

http://bsp.net.au/
http://www.healthplay.com.au/

On on my machine - Windows 10 x64 Version 1511 (OS Build 10586.14)

With IE 11 (11.11.10586.0)

http://bsp.net.au/ - Crashes saying "Internet Explorer has stopped working"
http://www.healthplay.com.au/ - Crashes saying "Internet Explorer has stopped working"

Microsoft Edge

Both sites work ok

---------------------------------

In a VM on Windows 8.1 (Version 6.3 Build 9600) - IE Version 11. (11.0.9600.16384)

Both sites work ok

---------------------------------

In a VM running Windows 10.0 (Build 10240) - IE Version 11 (11.0.10240.16590)

http://bsp.net.au/
http://www.healthplay.com.au/ - Crashes saying "Internet Explorer has stopped working"

Microsoft Edge

Both site work OK

So my objective is to make sure *somehow* these web sites are compatible with IE 11
and Edge. Looks like Edge is ok but IE 11 is not.

So here are my questions:

Ok so I realize that the versions are slightly different but I would of thought
IE 11 should be consistent at this level?

So any suggestions on how to resolve to get it working on all sub versions of IE 11?

Thanks,

Ward.