Problem With Latebinding – VB 2005 Mobile Device

I am using a collection of textbox objects that are created during the form load event. These objects are later updated with data in other events. This works fine on a PC but when I try to deploy this code to a mobile device I get an error message saying “the targeted version the .NET Compact Framework does not support latebinding.” The offending statement is the following:
colTxtBox.Item(i).text = str(vCurOxy)
where colTxtBox is the textbox collection and
vCurOxy is a variable declared as Single.

Any help would be appreciated.