Dell dimension 8400

wnutt1

Distinguished
Jul 12, 2010
1
0
18,510
when I turn my computer on the windows start up screen appears and then my desktop photo appears but I have no shortcut icon and no task bar just the photo. I can see my mouse cursor and when i use ctrl/alt/del that is how i shutdown. i tried cleaning and reseating the RAM and still nothing happens . The CPU fan works. Anyone have any thoughts as to my problem??? I am thinking of new MB and CPU