Pete,
First of all, this is NOT a serious error at all, it is a glitch, an annoying one for sure, but nothing more than that.
if you remember what time the last error occured, open your eventviewer and look at the fault messages. You should be looking at the following thing: custom views/Administrative events. You're looking at a red circle with an exclamation mark.
Copy the details of that, post it here, and we'll be able to help you. I'm leaving home in a minute or so, so tonight (european time) I won't be able to help... Sorry about that!
Keep us posted!!!
Johan
EDIT: if nothing comes out of the eventviewer thing, then I'll help you tomorrow for sure. You have my email addy, so lemme know! In the meantime, mail me your phone number.
I had never looked at the Eventviewer. Didn't know where it was, or what it was. But I started FSX...selected a aircraft, took off, ended flight, and then shut down. I then went to Eventviewer, having noted what time the error was. This is what I found: (all goblitygook to me!)
Log Name: Application
Source: Application Error
Date: 8/30/2014 12:58:00 PM
Event ID: 1000
Task Category: (100)
Level: Error
Keywords: Classic
User: N/A
Computer: Peter-PC
Description:
Faulting application name: fsx.exe, version: 10.0.61637.0, time stamp: 0x46fadb14
Faulting module name: KERNELBASE.dll, version: 6.1.7601.18409, time stamp: 0x53159a86
Exception code: 0xc0000002
Fault offset: 0x0000c42d
Faulting process id: 0xea8
Faulting application start time: 0x01cfc47b35fceafd
Faulting application path: B:\Program Files (x86)\Microsoft Games\Microsoft Flight Simulator X\fsx.exe
Faulting module path: C:\Windows\syswow64\KERNELBASE.dll
Report Id: 2d81b499-306f-11e4-ae4f-20cf3019aad5
Event Xml:
<event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<system>
<eventid qualifiers="0">1000</eventid>
<level>2</level>
<task>100</task>
<keywords>0x80000000000000</keywords>
<timecreated systemtime="2014-08-30T17:58:00.000000000Z">
<eventrecordid>15298</eventrecordid>
<channel>Application</channel>
<computer>Peter-PC</computer>
<security>
</security></timecreated></provider></system>
<eventdata>
<data>fsx.exe</data>
<data>10.0.61637.0</data>
<data>46fadb14</data>
<data>KERNELBASE.dll</data>
<data>6.1.7601.18409</data>
<data>53159a86</data>
<data>c0000002</data>
<data>0000c42d</data>
<data>ea8</data>
<data>01cfc47b35fceafd</data>
<data>B:\Program Files (x86)\Microsoft Games\Microsoft Flight Simulator X\fsx.exe</data>
<data>C:\Windows\syswow64\KERNELBASE.dll</data>
<data>2d81b499-306f-11e4-ae4f-20cf3019aad5</data>
</eventdata>
</event>