This is my first post but I am an avid fanatic and reader. Today though, I felt compelled to join. Since steam did an apparant update today 2 issues have arise and i wanted to see if you could help me.
Issue 1) Civilization V Worldbuilder won't load: I am unable to load this application through either my steam homepage or through the work around (by exiting steam and running the exe file from the program files). Every time I try to load it one of two new error message appear: "You cannot load worldbuilder whilst civilization v is running" or, if I have completely exited steam, "....."
This is even though I am not playing civilization v or have played civilization v since restarting my computer.
This leads on to the second challenge:
2) Once I have laoded steam, I am unable to exit steam because it says"please exit civilization V before exiting steam."
This is quite frustrating. I have uninstalled everything and reinstalled everything and still am having the same challenges. Anyone else having this?

Below is the error report
Application: World Builder
User: Unkown (Not an in-house user.)
Time: Friday 3/15/2013 8:03:45 PM
Runtime: 32 bit
OS: Windows XP (Service Pack 3)
Machine: OWNER-E4211245C
Exception: System.ComponentModel.Win32Exception
Source: System
Thread: Main Thread
Description: Only part of a ReadProcessMemory or WriteProcessMemory request was completed
Stack Trace:
at System.Diagnostics.NtProcessManager.GetModuleInfos(Int32 processId, Boolean firstModuleOnly)
at System.Diagnostics.NtProcessManager.GetFirstModuleInfo(Int32 processId)
at System.Diagnostics.Process.get_MainModule()
at WorldBuilder.Program.InitNexusFramework(String sGamePath)
at WorldBuilder.MainForm.MainForm_Shown(Object sender, EventArgs e)
at System.Windows.Forms.Form.OnShown(EventArgs e)
at System.Windows.Forms.Form.CallShownEvent()
at System.Windows.Forms.Control.InvokeMarshaledCallbackDo(ThreadMethodEntry tme)
at System.Windows.Forms.Control.InvokeMarshaledCallbackHelper(Object obj)
at System.Threading.ExecutionContext.runTryCode(Object userData)
at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Forms.Control.InvokeMarshaledCallback(ThreadMethodEntry tme)
at System.Windows.Forms.Control.InvokeMarshaledCallbacks()