Please use Add Project to check in the group of .IDW drawings and its dependences.
Here are the steps:
1.Start Inventor, and log into a vault.
2.Active the vault project with the groups of IDW and its dependences
3.Click File\Vault\Add Project.
4.Click Ok in the Add Project dialog.
BTW, Could you please tell me your check in steps and data structures in the vault project?
Thanks,
Annie