We have 30 'dumb clients' connecting over wireless to a Thin Client server. All are on Windows XP SP3, and the server is Server 2003.

We've noticed that when a student plays say a flash game online, even though the server is processing the flash animation, the switch port the wireless access point for the laptops is plugged into goes to 90% load. It is our understanding that the RDP client only transmits screen data, and input/output of the keyboard/mouse. How is it generating so much wireless traffic?