Can you switch from Express to VS2013 Community? With the Express SKUs a decisions was made to not support graphics diagnostics for developers of desktop apps, but VS2013 Community supports all forms of development and all the tools -- Community is essentially Pro with some license restrictions to prevent larger commercial entities and enterprises from using it. You should check the terms for yourself, but in essence Community is free for evaluation, open-source contribution, and for teams of up to 5, and yes, you can use it commercially if you fit under those restrictions. You *can't* use it if you're a development shop larger than 5 people, or are part of an "enterprise" as Microsoft defines it (I forget exactly how its defined, but its either one of making millions of dollars per year, or of having a certain large number (hundreds?) of employees.)
Community, as a pro-derived SKU, also supports the rest of the advanced features that weren't necessarily in Express, and also supports plugins, which the express SKUs don't. If you're a Unity3D user, this means you can use Visual Studio Tools for Unity (formerly UnityVS) entirely free now.