Task Manager opens without tabs?

I had a internet page freeze so I went to Task Manager to shut it down and surprise, no task manager. A window without tabs came up with a little window inside it looking for a run command. What is this? When I click on the empty spot on the taskbar, there is no task manager. What command should I use and how do I use it to restore task manager. My system is Win XP Home. Thank you for any help you can provide.

 

Check with Spyware & AV

Hi,
i suggest to scan your system with anti spyware & anti virus software ,it seems a problem with Virus / Spy attack.

Regards

 

thanks, I will do a scan. There are 4 users on this computer, the other 3 users task manager works normally. Only mine does not work.

 

Problem solved. I tried double clicking on the border of the Task Manager...it got it back to normal Thank for all your replies