Hi

One of our clients has a problem uploading content via the file manager. If he is replacing an existing item he is getting the following error:

Stack Trace:

[IOException: The process cannot access the file 'F:\Inetpub\CCM_CMS\Uploads\Globals\9f\f6\9ff63812-1d12-4db1-b716-21425d2ff832.TMP' because it is being used by another process.]
System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) +7714720
System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy) +1162
System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share) +66
EPiServer.Web.Hosting.Versioning.Store.FileOperations.GetReadStream(FileItem file, FileRevision rev, FileMode mode, FileAccess access, FileShare share) +58
EPiServer.Web.Hosting.Versioning.VersioningFileHandler.OpenRead(FileMode mode, FileAccess access, FileShare share) +146
EPiServer.Web.Hosting.Versioning.VersioningFileHandler.Open(FileMode mode, FileAccess access, FileShare share) +21
EPiServer.Web.Hosting.VersioningFile.Open(FileMode mode, FileAccess access, FileShare share) +63
EPiServer.Web.Hosting.UnifiedFile.Open() +19


Does anyone have any idea what is causing the exception. 

 Many thanks

 Stuart