Control Panel, then regional options. you should be able to change their. may require a reboot though
sorry wrong place. try this... Assuming your on Windows XP Start Control Panel date,time language and regional options Regional & Language Options in the box that pops up click on languages tab click on details under text services and input languages under installed services, ensure that english keyboard uk in set as default or installed, remove US done (again may need reboot to be efftective)
hehe my mate once complained his PC kept going down on him..I told him to marry it and asked if it had a sister