This might help.
When you Ctrl + Alt + Delete, click on the "Processes" tab and take a look at what's running there. Go to
http://www.answersthatwork.com/Taskl...s/tasklist.htm and look up a few of the things listed. Look out for anything that you
definately don't need running on your computer.
If you are sure there's something unwanted running then right click and end that process.
Be very careful not to kill anything that's important. I've been using the above link for reference for a couple of years and it's always served me well.