Hi Greg,
This issue has been previously reported and is generally related to an upgrade to DNN 4.9. What Dynamic Forms version are you using? If you have DF 2.7, please go to Patches and Hot Fixes to download the latest build which has a fix for this.
If you're on a lower version, check out this thread on DNN 4.9 and misaligned fields. Please note Chad's post on 11/24/08.
Let me know if this fixes you up. Thanks!
Candace