Dell Dimension 5150 (DIM515MIN) PC Desktop "cr disable" Questions

vaio cr series laptop - the desktop is all black i got my vaio about 8 months ago, and a few weeks ago i noticed that when i switch it on, it would start normally..i.e the swtich user page comes on ...

...yahoo games unless I disable my pop up blocker. The pop ups, specifically Ambien CR freeze me up and keep coming up every few mins. you have get the pop up block oof then intail the adoe flash ...

i have a sony vaio VGN-CR series, the sound just stops working. no output of sound. i have tried disabling the sound card and enabling it-nothing. i have to format the laptop everytime this problem ...