I have a few combo boxes, that are populated with unique entries from the worksheet. I would like the program to filter down the options, as values are selected from the combo boxes.

Essentially I have 2 combo boxes. After the user selects an entry in the first one, it will filter the results available for the next box, which then will filter it down completely to only entries matching those two filters.

Any ideas? I've been having alot of trouble with this.