Small documentation updates brought about by reviewing the learn awips cave modules

- update the common problems page with the section about data not loading because of python...changed the solution instructions now that we bundle python with cave
- update the d2d-perspective page so it has a subsection on how to remove an individual resource using the resource menu
- add an image for single resource unloading

docs/appendix/common-problems.md

@@ -80,9 +80,7 @@ or
 
 This problem is most commonly seen with the direct Windows installation.  It can also manifest in the Mac installation (and is possible on Linux), and the root of the problem is not having Python installed properly for CAVE to use the packages.
 
-If the [Windows installation](install-cave.md#download-and-installation-instructions_2) was not completed properly, it is possible to see incorrect behavior when loading certain products.  These are derived products which use the local machine to create and render the data.  This creation is dependent upon python and its required packages working correctly.
-
-The dataset will be available in the menus and product browser, but when loaded, no data is drawn on the editor, but an entry is added to the legend.
+There are derived products which use the local machine to create and render the data.  This creation is dependent upon python and its required packages working correctly.  The dataset will be available in the menus and product browser, but when loaded, no data is drawn on the editor, but an entry is added to the legend.
 ![failed load](../images/failedJepMetarLoad.png)
 
 You may see an error that mentions the python package, **jep**.
@@ -96,12 +94,13 @@ Known datasets this can affect (this is not a comprehensive list):
 
 To correct this issue on Windows:
 
-  - Uninstall all related software (C++ Build Tools, Miniconda, Python, CAVE, pip, numpy, jep, etc)
-  - Install our [latest Windows installer](http://127.0.0.1:8000/awips2/install/install-cave/#windows) which bundles all necessary software dependencies
+  - Make sure you only have the latest version of [CAVE installed](https://unidata.github.io/awips2/install/install-cave/#method-1-direct-windows-install) (which now fully bundles the proper version of Python with the application)
+  - If you have ever previously added `PYTHONHOME`, `PYTHONPATH`, or `JAVA_HOME` to your user or system variables, please delete those.
+    - Open the Environment Variables window by typing "env" in the start bar
 
 To correct this issue on Mac:
 
- - Install the [awips-python.pkg package found on **step 1**](https://unidata.github.io/awips2/install/install-cave/#download-and-installation-instructions_3)
+ - Make sure you have the latest verison of [CAVE installed](https://unidata.github.io/awips2/install/install-cave/#macos) (which now fully bundles the proper version of Python with the application)
 
 To correct this issue on Linux:
 

docs/cave/d2d-perspective.md

@@ -43,6 +43,12 @@ The hold-right-click menu allows you to control individual resource **Image Prop
 
 This menu also gives you the option to unload **this specific product**, as opposed to removing all data prodcuts.  Simply select the **Unload** option at the bottom of the resource's hold-right-click menu.
 
+#### Unload a Single Resource
+
+To remove or "unload" a single resource, use the Resource Menu.  Open the Resource Menu on the resource you wish to remove and select **Unload**.
+
+![unload single resource](../images/unloadSingleResource.png)
+
 ---
 
 ## Display Menu