FS9 crash to desktop

[jonny]

When I run WideFS and Plan-G on a second computer, FS9 on my first computer crash to desktop after 20 minutes. Why? I do not get any information from Drwatson only a sign telling me that 'Microsoft Flight Simulator has run into a problem and has to stop'.

I have done som tests:
If I run WideFS alone on the second computer and Plan-G on the fs computer fs9 crash after 20 minutes.
If I run WideFS alone on the second computer and no Plan-G, fs9 do not crash, after 20 minutes I start Plan-G on the second computer and after 20 minutes FS9 chras on my first computer.

My computers have WinXp as OS.

What is wrong? Where should I start looking for a failure?
I ask this question at Peter Dowson and as well as at Tim Arnot.

/Jonny 

[jonny]

I am sorry it's all my fault.
After more reding at Plan-G support I realize that I have to uppdate my OS. I hadn't done that for at least a year. After running Microsoft Uppdate to my bouth PCs, all works well. (I didn' uppdate Internet Explorer nor install IE8!). I prefer Mozilla Firefox.
/Jonny