Public Folder : Access Denied

My problem is this: I can access the Public Folder on the PC from the laptop but not the other way round. All access is denied to the laptop from the PC . Both computers have public/sharing switched on and AUC is off. From Internet Explorer, if I can click on network on either machine I can see the whole network, but if I double click laptop from the e-machine I get the error message. Clicking diagnose the problem results in: Nothing wrong with the network. All settings on each computer look identical yet I cannot resolve this access problem. I have searched high and low for a solution without success and then I thought the Bitlocker Drive encryption on the laptop might prevent access from another computer. Without actually turning off Bitlocker, can any of you gurus out there shed any light on the matter? I don't know whether this is the problem because I can remotly connect to the laptop via PC Anywhere from the internet.