Add to cart button doesn't work in IE

I am using opencart 1.5.4.1
In my shop “Add to cart” button is not working while using IE. (it’s working in FF and Chrome). This problem happen only when try to click on “Add to cart” when the item is open on its own page. When it’s in the list or grid of category/subcategory then even in the IE “Add to cart” is working fine.
It works also when there are NO options to select. If there is an option (colour ....etc) to select it is not working in IE

I have been reading this and other forums for weeks now and tried "solutions" as on CSS, Checkout, Product.tpl, etc etc..... It just does not want to work?
Also I (re)installed "clean" program on a sub-domain (no changes on any file) guess what? It is not working with IE if there is an option on the product.
If anyone else has this problem or has an idea? Please let me know!
Thanks

Hi,

Yes .... and I am almost sure it has something to do with java script as far as I could find items about this.
Also, it seems this has been solved ages ago but not with me....:-) and all ideas I have tried but cant get it solved.
Bill Gates says: Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; BOIE8;ENUSBO0026)
Timestamp: Mon, 15 Oct 2012 15:33:41 UTC


Message: HTML Parsing Error: Unable to modify the parent container element before the child element is closed (KB927917)
Line: 0
Char: 0
Code: 0
URI: http://www.easycigarettes.co.uk/EGO_510

Thanks

Thanks very much for trying..... it works at least for some or even most people.
I tried on an other laptop.... same story but I will go to inet cafe ....and try

Thanks anyway. I hope it is my own system.....
In that case I only wasted a lot of time and have to make apologies to Bill for everything I wished.....

What I do not get is that it gives me an error..... hmmm ..... strange....