>I've not been able to find a documented limit to the number of array elements that can be used in an array popup. 500 seems to kill it on several different systems I've tried. I've worked with MEMLIMIT and MVCOUNT some, to no avail. Any ideas?
Daniel,

The absolute limiet for an array is 65,000 elements. However lists and popups really start to drag when the number of items goes beyond around 300-400. If you really think about it, presenting a user with 500 choices in a list in not the best way to help them make a selection.