Problems creating FILE comm channel

Hi there,
I'm having problems with the creation of a simple communication channel that will pick and read a XML file from my computer. I'm trying to pick the XML file for mapping it to the corresponding fields and generate an IDOC.
I'm not concerned with the IDOC right now, i'd would like to try to fix this problem first.
I've created the business system with the communication channel.The channel has the following characteristics:
Adapter Type: File
Transport Protocol: File System NFS
Message Protocol: File
Adapter Engine: Integration Server
File System Aacess Parameters:
Source Directory: C:/temp
File Name: Vendor.xml
Processing Parameters:
Quality of Service: Exactly once
Poll Interval: 60 secs
Processing Mode: Delete
File Type: Text
So the file should be picked and deleted after being processed by the Integration Engine.
I've already created the Sender Agreement with the service and the communication channel i'd already created.
Do you have any ideas?
Do I have to turn the firewall off? it's off...
Do I have to create any connections to my pc?....
thanks

Thanks for all the answers but the problem persists....
Bhanu:
"Please check the SLD entry for the R3 system where the IDoc is." Are you refering to the SWCV?
" make sure that the XI system has access to the File system (or it is on the same App Server as XI)" Yes, the file is on the same App Server.
Prabhat:
I've tried your suggestion but the result was the same...
Is there a log where I can see why is he not doing anything? There must be a log where I can find what exception was launched...
Help...please...:)

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Hi,
I have a unique problem. My file sender communication channel picks and process files only when the filename extension ends in .txt.
I had checked the configuration directory and made sure it is not *.txt type and had given star.star.
Still am not sure why this is happening.
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Edited by: Anandha Krishnan on Jun 9, 2008 6:37 PM

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For a file-XI-file scenario,if multiple files are coming from same FTP server but with different names then we have to create multiple communication channels for all the files of different names..but is this a intelligent approach?Can we do something so that only one communication channel can receive multiple files of different names?plz explain in detail if possible ASAP.
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Correct me if I am wrong.......
1)If there are multiple files with different names & different extensions in the sender FTP then we use-->
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