Maybe a silly question but one day I did something accidentally in VS2008 and ever since then, whenever I hit F5, just before my app appears, I see a quick flash of a small window labeled "Object Test Bench". ie, it appears and very quickly disappears.
I've read about Object Test Bench and (since this happened) had a quick play with it in View / Other Windows but I haven't been able to stop that quick flash.
It's not really a problem, VS seems to work fine but I'm always uncomfortable about something happening that I don't understand and didn't happen before.
I also have the same problem. I once had JetBrain's Resharper 4.5 installed. I uninstalled it after my trial expired, and I think that's when I noticed the Object Test Bench popping up when I debug.
Did either/both of you have Resharper or any other Visual Studio add-on installed/uninstalled before this problem?
UPDATE
Try resetting the Visual Studio settings. How to: Reset Your Settings
After resetting, the object test bench popup went away.
If you would rather not lose all of your settings: