This is what happens when you do not run cmd first.
Jim
This could be malware. When you open the command window, do you go to
Start => Run and type in just 'cmd'? Try 'cmd.exe'.
When you open the Command windows, instead of just typing 'ping', type
'ping.exe'.
Look for files in C:\Windows\System32 such as cmd.com, ping.com,
regedit.com
If you do have these symptoms try this:
Download KillBox here:
http://www.bleepingcomputer.com/files/killbox.php
Run KillBox and check the box that says 'End Explorer Shell While
Killing File'. Next click on 'Delete on Reboot'. Copy the files
listed below and go back to KillBox. Go to File => Paste from
Clipboard and then hit the button with a red circle and white X.
Confirm to delete and when asked if you want to reboot, say no:
C:\Program Files\MsConfigs\MsConfigs.exe
C:\WINDOWS\system32\p2pnetwork.exe
C:\WINDOWS\system32\CMD.COM
C:\WINDOWS\system32\netstat.com
C:\WINDOWS\system32\ping.com
C:\WINDOWS\system32\ipconfig.com
C:\WINDOWS\system32\regedit.com
C:\WINDOWS\system32\tasklist.com
C:\WINDOWS\system32\taskkill.com
C:\WINDOWS\system32\taskmgr.com
C:\WINDOWS\system32\tracert.com
Restart