I have a 2007 Access DB, which i am developing and want to then import data from an existing db. i have a form [frmvehicles] that adds new cars, when a new Model [one not prev on list] is entered, the form will as you if you want to add it, then add it to the tblmakemodel, and go on to next field. this works great. the problem is when /after i import my new data.. that field stops working. I have a cbo that selects the make of the car, a cbo that selects the model of the car, and a cbo that selects the submodel. I orig developed the table for available vehicles (as opposed to cars to be taken off list.) off of a table. I need it to read off of a query for available vehicles only. I am not sure how i messed this up or how i can fix it... the file is too large to upload, I can email to someoen if they have an idea or want to see. hope someone can help me, i have 2 mos into this. i am attaching the old db, before anything was imported. I imported data to the tblmake model for the cbomodel and the tblsubmodel for the submodel data.. and neither of those effect the frm , everything works there.. so thats not the problem... everythin works until i import the 100k of vehicle records i have. any ideas? The sample i am uploading is only to show how those fields were working. this is before i imported any data to the tblmakemodel or tbl submodel.. file again is too large to import after i imported that data.. but those fields worked after that..