Hi Jill,
The best practice is to use same projection for Reviewer work space and Data but if for some reason your data is in different projection then set the transformation method (based on your projections) in the data frame properties as shown below :
Howerver, I am still not sure why in your case File Geodatabase is not working and Personal Geodatabase is working fine. Can you please confirm me the Projection information of the following :
1. Reviewer workspace - File Geodatabase
2. Reviewer workspace - Personal Geodatabase
3. Data
Thanks,
Kumar