I am trying to determine what is wrong with my small company's web form 2010 C# application. Right now when I run the production code, I am missing the second level of the master pages on selected web pages. I have not changed any code, this problem just started to show up.
To solve my problem, I want to ask the following questions:
1. Have there been any microsoft updates since 7/20/2012 that could cause this problem? If so, can you tell me what could be causing this problem and how to resolve the issue?
2. If there has not been any Microsoft updates, I have the following questions to ask:
a. I know that if I press F12 on internet explorer, I can see part of the web page references like css sheets. Can you tell me from this point if there is something on the bottom of that screen, to help saw where issue lies? b. On the internet, I have seen references to developer tools that can tell where the problem is coming from and ...
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