Hello, I have create a menu in webstyle that works fine...for a while.

What is happening is that when you open the webpage the menu works ok, but after you click on a few of the drop down options (which take you to different pages) the menu (the drop down options)start jumping all around the page...So I'll put my mouse over a topic and I expect the options to drop down below it...but they drop down up the top right hand corner of the screen. Any ideas??? Thanks