[gb2world]

The javascript in func.js is what does the substitution of the price - you can check any mod updates to skin1/modules/Product_Options/func.js. If you disable javascript on your site, you can see that the price tag correctly located - so you know there is something amiss in the check_options function.



A few more hints for when you look around func.js:

There is a javascript variable called currency_symbol that gets set based on the smarty code for the symbol. You will also see javascript code equating things to document.getElementById('product_price').innerHTML

That is where the javascript substitutes text inside the class called product_price depending on what option you select.

See how any mod that you added might be using the currency_symbol variable in the innerHTML - maybe if you debug with this in mind - it will point you to the issue. (Hopefully!)