Slow SSMS

I'm using SSMS for SQL SERVER 2008 and on running a simple SELECT statement which will just return 2 rows (the only 2 rows in this table) and about 20 columns, on all client PCs this takes less then a second, however on one PC (the problematic), it's taking 10 secs just to return these 2 rows!

SSMS is connecting to the server using TCP.

Any help or pointers are greatly appreciated

Regards

Brian