Debug applications as well, and try to get in as much code as you can. You can know a great deal of C# but still be confused by how the code is layed out. There is may ways to layout the code for an application, some may get really Object Oriented and break out everything over and over, and some may have it all inline so knowing the proper way of doing it helps. Also work with this site as you can simplify some logic by know these factors: http://msdn.microsoft.com/en-us/library/67ef8sbd.aspx[^] Notice it shows 2012 but most of that is pretty in general in terms of what the parts are as it references the book of .net Framework 3.0. Hope that helps, happy progressing.

I installed 2012 Professional on a desktop that already had 2010 Professional on it and I didn't get any issues at all. Not sure if the issue you may have encountered was due to the 2012 was a RC version or if they already fixed that.

There's several things to consider when changing to a new IDE and then moving your applications to a new framework. Depending on if your developing for yourself in terms of development or for a company which will require stages to complete. Converting to VS2012 only - From a previous version you will only have to open the old vs2008 solution in VS2012 and it will convert the project files to the new IDE version of VS2012 automatically. There shouldn't be any isssues after that unless your working with versioning systems, then you need to make sure you save the new VS2012 project and check it in. From there you will notify the team they will have to get an update before opening in VS2012. Changing your Framework - You may have some complications due to some of your current libraries may have some obsolete references in it and you will need to make sure you do some rather intense testing to make sure your application is not impacted when using those old references in the new framework. Can it be done, yes, but you need to keep a copy of both the VS2008 version and the previous framework before doing so just to avoid any down time or any complications that will cause others frustration. Hope this helps.

I would check that you have the needed framework on that ultrabook as you have in the solution are complete. May be a missing some contents in the framework on the ultrabook. Easiest test is to reinstall the updated framework bundles and try it again. Could also be a disconnect in the references in the setup of the ultrabook visual studio session.

If you are running the program from Visual Studio, then Yes you can. In VS2010 click on the top menu item "Debug" and in that drop down click on "Exceptiosn". Here you will see a list of options to "Break when an exception is:" list, you want to check mark the "Thrown" box next to "Common Language Runtime Exceptions". This makes it to where when that error occurs in the code it will throw the exception through VS instead of through the Windows JIT exception handler. Excellent tool to see where the errors happen as they happen even when you handle them within the application. You can turn that off at anytime as well. *Note, if your running outside of the IDE you can attach to it if the code version in the applicaiton is the same as the application and that is a different subject... Hope that helps.