I posted this over at the MS help forums to no avail...hopefully I can get some answers here: Running 4 puters..all with Windows 7 Ultimate...all joined to the same Homegroup..all have made sure that all of the puters have the same name "Workgroup" for the homegroup...Network Discovery turned on for all....File/Printer sharing turned on for all....password protect turned off for all..public sharing turned on for all....have the proper sharing set up on all the folders I want to share on all...same password set up on all when I joined the Homegroup on all. I can see all the puters in the network when I click on Network on the desktop...but when I click on one...it says I don't have permissions the view on all...BUT...I see my network printer and it works on all puters...have tried leaving the Homegroup and re-joining on all. Oh....and here's another little tid-bit to make this even more bizarre.....in the folders (any folder) side navigation pane...if I expand the Homegroup...all my shared folder show up and I can access them.....but as I said......when I go to the Network folder(on desktop) and try to click on the puters name itself (eg: Livingroom-PC...I don't have permissions ?????????? I have tried everything to no avail !!!! I'm about to rip my hair out...can anyone help....thanks. PS...It's not the firewall nor my AV...cause I've tried disabling both on all....and everything was working fine until a day or so ago.