Could be a number of things Scarlett. Have you tried RIGHT clicking the icon for say Chrome in the System Tray(bottom of screen) then click exit and then reload?
Are there any Flash updates available?
Have you got any driver updates available( XP is no longer supported)
Have you got Displaylink drivers installed? if so try uninstalling them.
Plus you could try having a look in documents and settings. Local settings try run as administrator, or find Chrome user default and data types and tick preferences box. Sorry I have forgotten the way to access xp system for documents/settings.