win 7 pc does not reflect stored files by a station through the network

Hello Experts,
I have a win 7 pc (I will call it PC1) working in a LAN with other four pcs all of then win 7.
the thing is once a file or folder is stored/saved in PC1  from any other station.
it appears and works normal for the station, but in PC1 does not show the files or folders stored through the network,
even after waiting and pressing f5 to the windows explorer...

What can I do ?
RGuillermoProject ManagerAsked:
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Mustafa L. McLinnSystems Engineer/Systems AdministratorCommented:
first try to ping it .. goto the cmd and type ping pc1  if you can reach it then you just have to check to make sure windows networking features are actually turned on and configured.
RGuillermoProject ManagerAuthor Commented:
I did, it pings correctly
thing is the station sees a completely differente content in a folder shared from PC1.
While PC1 and all other pcs exept STATION1, they all see the same content
station1 sees only a few files
never happened to me before.
but now I know it is station1 who is reading wrong.
is there a tool to solve this or better to format and install again ?
NVITEnd-user supportCommented:
Is the same user logged on all stations?
RGuillermoProject ManagerAuthor Commented:
no different users in each station
NVITEnd-user supportCommented:
If the user having trouble logs on a good station that doesn't have trouble, does the trouble occur on the good station?

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Windows 7

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