Parser Error-Net Framework?

[Ken]

After installing Net Framework (as well as service packs),
when opening the folder windows/system32 I get a "parser
error" message
c:\\windows\system32\urttemp\config\machine.config
Parser returned error 0x80070003

I can search the folder ok, but the message is annoying.

There is no file in that directory called machine.config.
However, that file is located in the "Microsoft.net" folder.

Anyone know what is causing this "parser error" and how to
fix it?

Thanks.