Poor performance on Terminal Server after upgrade to 8.81 PL10

Hi,

Upgraded a major site over the Easter weekend, but performance today on terminal server client only is very poor (10 sec to open a sales order and 3 sec to click between fields on marketing doc forms).

Previous version was 2007A PL13.

Performance on fat clients appears OK, but this is causing major issues for the 20 odd users on the terminal server.

Anyone got any ideas on this?