I have a user that uses the file synchronization in Gotomypc all the time. Recently, the program started transferring files that they didn't change. A repeated synchronize command transferred exactly the same amount of files. I thought there might be some file caching database that was corrupt and tried to reinstall Gotomypc for that user, but it didn't help. I finally called support and found that there is a bug that they are working on. The problem shows itself when the user tries to synchronize folders with large numbers of files. He said over 100 files, but I wasn't able to verify if that number was hard and fast.