This issue has been previously reported.
For More Information see: Bouncy layout with latest versions of IOS 5 and Go
This is one of many acknowledged bugs that can be found in the Known Buglist for Filemaker GO here in the Report an Issue section of the forum.
It can also be downloaded as a database file from: http://www.4shared.com/file/8orL8apk/FMP_Bugs.html
Thank you for your post, and I apologize for the late reply.
This issue has been fixed with the latest update of FileMaker Go 1.2.4. If you haven't done so already, download the update through iTunes.
Thanks, I'll give it a try soon. I appreciate the fix and don't consider this all that late, myself. :-)