A couple of days ago, I posted a question regarding a possible Excel 2007
bug.
I've been able to re-produce the "bug".
Think it's likely to a Vista bug rather than an Excel 2007 bug.

For those of you interested:

I ran across this "bug" having to build and adjust some Excel enterprise
applications when I stumbled on following:
- I setup Vista's Windows Explorer to show Thumbnail preview images.
- Worked on 2003 legacy Excel files (incl. VBA projects), needing to backup
regularly and re-open files/addins
- Excel 2007 Trust Centre settings: Trust all VBA Projects, no special
Trusted locations added to Trust Centre

Having started up the Files/Addins from Vista's Windows Explorer (note: file
thumbnail preview enabled) and
closing the target files after development, the particular instance of
Windows Explorer (from which I started up files/addins) hangs. It is
completely locked down and killing the instance from Taskmanager causes me
to restart the system.
Note: if I *don't* restart the system, this "bug" is manifest ...
In such case, Excel 2007 will start up they way I described in my Feb 15th
post, ref: "Excel 2007 bug?".

The "bug" is NOT manifest if the Thumbnail preview is disabled in Vista's
Windows Explorer.
--
Krgrds,
Perry

System:
Vista/Office Ultimate
VS2005/VSTO2005 SE