Get hijackthis from this page
Click Me
About 1/2 way down there is a 'direct download' link.
Download and unzip to a folder. When you run it click the scan and create log file button.
A notepad window will come up. Copy/Paste the contents of that window in to the open field of the page I sent you to.
It will then let you scroll down further and tell you what looks really bad, suspicious etc....