Networking problems

[Bigboy]

Can Anyone help me please

I have 4 Rigs all sharing the same 1mb DSL via a switch no problems there but whenever i try to acces the shares on one rig (Called Flatty) i get the following error

No matter what i have tryed i cannot change this.

The network is setup correctly and i have ran the Setup office / home network wizard untill im blue in the face but still the same.

OS WinXP Pro Sp1 very up to date on all rigs

Rigs

Flatty P3 750

Bigboy XP1600 \

Birdy 2.8 PIV | Can all see each other but cannot see / access Flatty

Ralphy XP1800 /

anyone?

i have been here

Administrative Tools->Local Security Settings->Local Policies->User Rights Assignment, right-click on ''Access this computer from the network->Properties->Add Users or Groups

and added all the rigs that need to access the shares but i then get the following

Failed To Save Local Policy Database

i even tryed it in safe mode with full admin rights and was still unable to get this working!

can anyone help me here?

[Mike-C]

Any firewalls or antivirus running? Panda antivirus stops you accessing shared files/folders if not configured properly.

Edit: Also, check if the XP firewall is on.