Search Box on Forms Help

[Access_Headaches]

Not sure this is the appropriate place to post this but here's my problem. The Combo box we use to search accounts via the Zip Code is limited to 66,000 names. (Approximately) Our contact list is 88,000, any zip code we use that's starts with 8 or 9 (states Like California) wont show up. How do we make a Text box field and Zip Code search combo box field Correlate with one another so that we can use it as a filter?

[MN] [56401]

By doing that we would be fine as we don't have nearly 66,000 in any given state.

Our current patch is to have a parameter box show up that asks for the state but when you have to move on to another state, you have to hit refresh twice which is not ideal.

 

[statsman]

Is it necessary to have a combo box?
Can't you just type the Zip into a text box and search?
This would also remove the need for the State.