IE 7 won't open

I installed Internet Explorer 8 and had problems so I did a system restore to get IE7 back. The restore was successful but now when I try to open IE7 it shuts down after 2 seconds.
I also have a question but I don't know where to post it, so if I need to post in another section let me know. When I start my computer I get this message
Diagnostics activated.
new _DIAGWINDOW(DrvnQ117)
delete _DIAGWINDOW(DrvnQ117)
new _DIAGWINDOW(DrvmCDB)
delete _DIAGWINDOW(DrvmCDB)
new _DIAGWINDOW(DrvnCDB)
delete _DIAGWINDOW(DrvnCDB)
new _DIAGWINDOW(DrvnPPqT)
delete _DIAGWINDOW(DrvnPPqT)

It doesn't cause any problems I'm just wondering how to stop it. It started after I uninstalled Roxio Media 10.
Thanks

Bear359--Concerning the Diagnostics messages see
http://www.pcreview.co.uk/forums/thread-2682869.php
http://forums.techarena.in/windows-x...ort/521101.htm

Concerning IE7, are you satisfied with the present situation? If not, perhaps open another thread so as not to confuse whatever answers you get about the diagnostics.
However, a top of the head suggestion is to uninstall IE7 from Control Panel|Add/Remove. And then reinstall.
If you do not find IE7 in Add/Remove (you find it under Windows Internet Explorer 7) and you installed XP SP3 after originally installing IE7, you will have uninstall SP3 first.
http://blogs.msdn.com/ie/archive/200...and-xpsp3.aspx