Fabio,
It's a misuse of the cbo to have that many selectable items in it. And you should expect that loading that many pictures into it will take a fair amount of time and system resources.
Perhaps you'd be better off using the Listview ActiveX instead.
Since it's Sunday perhaps you can find some useful hints about UI design from this article:
http://builder.com.com/5100-6371-1044594.htmlAnd this Microsoft book on line
http://msdn.microsoft.com/library/en-us/dnwue/html/welcome.asp>If you try to define more 500 Pictures
>the Combobox remove Top and Bottom exuberant pictures.
>Another problem is speed to load Pictures.
>
>The only workaround i found is to use
>like source a POPUP with pictures.
>But this is good only with 1 column of text.