In order to accomodate a better morning peak arrival at Weymouth (and consequent later departure of the return), the following Warminster/Dilton Marsh links have been realigned :

0824 Southampton Central-Westbury becomes the 0823 Southampton Central-Great Malvern.

1028 Warminster to Gloucester becomes the 1025 Warminster-Westbury. A 5 minute connection into the Gloucester service will be available at Westbury.

Also, Dilton Marsh loses its 0746 stop in the 0600 Portsmouth-Cardiff service, but gains an 0845 stop in the 0651 Portsmouth-Cardiff service, which means that Dilton Marsh will have a near-hourly northbound service from 0630-1030.

The May 2008 timetable can be found in the link below.
http://www.firstgreatwestern.co.uk/Documents/Custom/DC%20MAY%202008%20TIMETABLE/Bristol%20area.pdf