network connections being dropped

Hi,

I've been trying to solve a network connection issue, and at first thought
it was DHCP, then a wireless issue, but after more testing it boils down to
this... Windows Server 2003 network. 2 servers, both AD's, and about 20
workstations.

I have one laptop (XPPro) that when even connected wired and static IP drops
connections to drives and certain workstations machines over time. I can
reboot and get a full compliment of connections, but shortly it will drop
several drives. These drives are mapped to drives on workstations I need to
see. It never drops connections to drives on the servers.

All my other workstations connect fine. It's just this one laptop. All
updates are applied to it.

Laptop is a fairly new HP Pavilion 6500t.

I'm stumped. Anyone have any ideas for me?

Thanks!

--Randy Starkey