I am trying to network my sisters laptop to her desktop PC. Laptop is WinXP pro and desktop is WinMediaCenter. I ran Network Wizzard and named each PC and assigned an identical Workgroup name to each ...

Some NICs don't work well with the MediaSense feature (MediaSense is the code that watches your NIC and pops up the ballon saying 'unplugged' among other things); you can disable it using this: ...