printer sharing

i have 2 pcs/1 laptop on my network: XP Home, W2000Pro,
XP Pro (laptop). All are sharing internet through
linksys router w/o problems. XPHome (main computer with
all hardware directly connected) and W2000 can see all
computers, but the laptop (XP Pro) can't see the other
computers. I is included in the same workgroup as the
other PCs and also has the same printer share names as
the others. Also, i can't get the laptop to print to the
shared printer. I have enabled NetBIOS, ICS is disabled,
all settings in TCP/IP are the same between all three. I
tried adding new printer, searching network, but the only
printer name that appears in the 'shared printer window'
when the wizard browses is "Microsoft Windows Network".
This doesn't respond the same as when i installed on
W2000Pro, showing \\main computer name\printer. ANY
SUGGESTIONS WOULD BE GREATLY APPRECIATED. Thanks in
advance

ps I've gone to several sites, including the Microsoft
Knowledge Base, but i'm still stumped.