Lotus notes Pro GoTo Error in Record

Running Lotus Notes 6.5.1 with Easysync Pro v4.2. Recently had a problem with the PC and needed to replace hard drive. Reloaded the LN software, then Active Sync 3.7.1 followed by Easysync. Now I can sync all files except the contacts folder. When I try to do that I get the error: Goto Error in Record and the sync fails.

Need some help to understand what to do. Have uninstalled all and reinstalled - no change. Also tried deleting my address book in LN and syncing from the IPAQ 1910. Can force a complete sync, but next time it tries to run a normal sync it fails again.

Any help?

Eric