We are also currently having a problem with drop down. It is at the bottom of the page and when we click it, the list goes down instead of up therefore we can only see the 1st value in the list and the rest falls off the screen. Has anyone else experienced this?
We had this problem as well and I tracked it down to a bug in the ig_webcombo3_1.js script. In method igcmbo_setDropDown, changing the following line:
if(y-f-3>panH+editH)
to:
if(y-f-3<panH+editH)
fixes the problem.