I'm unable to modify code on a mapped network drive through VS2008, whether it's running as me or as administrator. Outside of VS I can edit the files with no problem. I'm running Windows 7 on vmware and the network drive maps to a location on the ubuntu linux host.
I'm stuck and have no idea what to try (other than relocating the code into the virtual machine, but I don't want to do that because they need to be accessible from ubuntu).
The problem was caused by the user/group ownership settings on the host Linux file system. Once I got that sorted out it worked fine. So it was an issue with the host system, not an issue with Visual Studio or Windows 7 running on the vmware.