Scheduled TMS_ # TMS_TP_IMPORT background jobs fail with error code 0232

Is anyone else having the problem we've just encountered since upgrading to ECC 6.0 and CRM 2007, where once setting up the automatic import ALL background jobs, to have all of the Transport Change Requests imported into the Q-Prod testing systems automatically, fail after several successful runs?

After setting up the automatic import background job to run every 15 minutes, the first few run successfully (importing any transports as it should), then the transports stop being imported.

The background jobs continue to run, but have the following in the job log overviews CRM 2007 - "Could not start transport control program tp". R\3 ECC 6.0 - "Transport control program tp ended with error code 0232".

Only by deleting the background job and recreating it (or manually importing) from STMS, can the transports continue to be imported. Although I have noticed that there are multiple tp.exe processes started, which need to be deleted before the STMS and TMS Background jobs work again.

The:

DB is SQL Server 2005

disp+work is at version 7000.150.14.48855

R3Trans is at version 7000.149.14.47907

tp is at version 7000.144.14.39594

Any suggestions on how to cure this for good?