BP details not updated in activities

Hi All,

We have a strange suituation with a couple of records in our system.

We have updated the first and second name of a BP but, for some reason, a couple of activities (assigned as business activies) only ever show the old detials.

I have tried puttiing the activies into change mode but it does not refresh the data.

The BP partner function is set as non-editiable in the partner determination procedure, but this would normally be fine.

When we create a new activity for this BP it does pick up the new details.

any one cam accross this before and has sorted it out?

Many thanks in advance.

Gaz