Visual Studio 2013 shows everything as checked out while using git

Hi,

I am working on a .Net solution using VS.Net 2013. The solution source codes are stored in a GIT repository, I used TortoiseGit to clone the repository into my local PC without problems. But when I opened the solution using VS.Net 2013 for the first time, everything in the solution has a red check mark which means it is checked out and modified. So I did some comparisons with the source control and  no differences found in diff windows.  

TortoiseGIT I installed is integrated with Window Explorer, Window Explorer shows everything unchanged. 

Can anyone help?

Thanks