This is a year old thread now. I wonder if the issue has been solved by anyone. I'm having the same problem, i.e. like to show all entries in select dropdown without having to scroll. Thanks if anyone has some follow up on this.
If it's just a regular select form. Use you could use <select size='50'> to display it all the way open. As far as finding a solution to the size of the scroll area though... I haven't found that yet.
I assume this is a browser-specific problem that no one has solved? I am encountering the same problem on a Win2k IE6 browser.