I am in deep doodoo.
Somewhere between the wifi and the broswer there is the network drive and its been conked on the head or something. It has amnesia.
If worse comes to worse, there’s always the emergency reset button.
http://ultraportable1.com/downloads/pdfs/EeePC_1008HA_XP_UM.pdf
http://support.microsoft.com/kb/308582
This periphally gets close to the question but not the root of the problem