Price modificator dont work

[size=5]If i add in product modificator another color whitch another price and try to buy this product i change color and have all time download line in top [color=#333333][font=arial, sans-serif]and the page[/font][/color][color=#333333][font=arial, sans-serif] [/font][/color][color=#333333][font=arial, sans-serif]freezes[/font][/color] ( I dont understand how to resolve this problem[/size].

[size=4][color=#333333][font=arial, sans-serif]Sorry for my[/font][/color][color=#333333][font=arial, sans-serif] [/font][/color][color=#333333][font=arial, sans-serif]bad English[/font][/color][/size]

can you post a screen image


Not sure, sorry could be Ajax, check with CS cart