i would first check for a bridged connection on the desktop. Remove the bridge if it contains a 1394 adapter.

can you ping the Desktop from the laptop (vice versa)?

can you ping the default gateway from your desktop or at least view the router from the desktop?

christina>you commented: I absolutely LOVE your avatar. +18

or run kill CMOS if you can boot from a CD.

[URL="http://www.softpedia.com/get/System/System-Miscellaneous/KILLCMOS.shtml"]KILL CMOS[/URL]