How can I determine why Visual Studio 2008 is hanging?

Visual studio is just hanging. The GUI just sits there and the CPU is at or near 0%. I've let it sit for close to hour to see if it would resume, to no avail.

What is weird, is that the GUI doesn't respond to clicks anywhere, however, it re-draws correctly. If I drag another window over it, after the window passes over a portion, it is re-drawn correctly.

At the bottom of the VS window, it sometimes says 'Analyzing database schema. Your database projects will be ready after 5030 operations are completed', however, the GUI has hanged without it there.

I'm not sure if this is the cause or not.

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I've tried /safemode, but I need the DB functionality loaded and using /safemode disables them.

I'm at a loss really.

More info -- The window stays as an unselected window even when I click on it. It's as though the whole thing is suspended except for the fact that it is redrawn properly when something else passes over it.

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It might be worthwhile to delete all of the temporary files (.ncb, etc.) that get created within your solution directory, and let VS re-create them. Sometimes they get corrupted.

The next thing I would do isto use ProcessExplorer to see if I can identify a thread that seems to be hanging, and whether it's in a particular module.