>How many rows can you have in a combobox if the RowSource is an array with one column only? I need to have about 150 rows, but the drop-down list seems to stop after 50 rows or so. TIA!

You may want to reconsider using a combobox. To me, anything over 20 or so in combo is a pain to work with. For this type of situation, I use a grid.