permission denied?

[Bill Barry]

Does anyone know what would be causing this error?
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C:\hgwork\Trunk>hg add
adding iPhi\Stellar\Stellar.iPhi.Library\Stellar.iPhi.Library.4.0.resharper

C:\hgwork\Trunk>hg ci -m "adding resharper file"

C:\hgwork\Trunk>hg push
pushing to https://[url removed - internal access only]
searching for changes
Permission denied: 
.hg/store/data/i_phi/_stellar/_stellar.i_phi._library/_stellar.i_phi._library.4.0.resharper.i

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We are all using TortoiseHg 0.4rc2 and the server is hg 1.0 (we will be 
updating to 1.0.1 [or .2 if it is released with the CVE fix] next 
thursday and cannot do so earlier).