using jquery ui 1.8 trying autocomplete
Everything works apart from that the ui-menu isn\'t positioned under my input element, but rather in the top left corner.
I know this is an old post, but just had this issue myself and fixed it another way.
I had updated jQuery, which caused the menu to appear at left:0; top:0; on the window, rather than nicely below my input.
left:0;
top:0;
window
Updating jQuery UI fixed it instantly. Hope this is of use to someone.