Visual Studio 2013 hangs when opening a solution

I installed VS2013 (v12.0.21005.1) and added ReSharper 8 (v8.0.2000.2660) a day or two ago. That day it was fine. Now I'm lucky if I can get it to open one solution in a whole day. It opens OK by itself, but when I try and open a solution from within - via the menu - it hangs, badly. If I right-click a solution in Windows Explorer and 'open with VS 2013', it opens then hangs, in exactly the same way. Every now and again, for hours, I get a little notice that it's busy with something.

Anyone know what could be wrong, before I endure a reinstall that doesn't fix the problem?

Solution 1:

Sometimes it's enough to simply delete the ".v12.suo" file and try to open the solution again. Helped me many times when VS2013 was freezing on loading a project.

Solution 2:

Deleting all ".suo" files worked for me. There were several copies due to opening the solution in multiple versions of Visual Studio.

Edit:

Possible path could be:

PathToSolution\.vs\ProjectName\v14\

.vs may be a hidden folder.

.suo is filename.