Method or Dataformat not found

[prabhus]

In my forms which i was using ii for more than a month now, i used Me.UniqueID, it was working fine and last week i made changes the Tab Index in my forms and after that i get the Method or Dataformat not found error. So when i remove the line and try to add Me.UniqueID, i don't fine the uniqueID in VBA, but i have it in my record source query and in the form? what is the reason?