I am having a problem with my Dell Inspiron 6000 laptop (Win XP SP2 running AVG 8.0, ADAWARE, and Zone Alarm) and hope you can offer some suggestions. I have been through the process outlined here and similar forums to erraticate viruses/malware before, but this time I'm stuck.

 Here's what happened:

I was on the internet and got a popup window that said something about a script running and asked if I want to close it. I just X’d out of it. About 15-minutes later, I got off the net and did some work in EXCEL. When I got finished, I started running a drive cleaner (HD Cleaner) which I have used for several years on various computers without a problem. I typically run this utility at least once a month. At some point after it finished, I returned to find the screen display size increased by about 300%. That is, I could only SEE about half of what I should be seeing. I tried to resize through Control Panel/Display/Settings but the "APPLY/OK" buttons at the bottom of the box were no longer there...so I couldn't resize. Also, It would not allow me to “RESTORE” previous computer settings. I realized then that I probably had a virus so I started following STEPS that I have used in the past to get rid of it. However, because the screen display was so large, I could not do anything. I did not have the option of scrolling up or down.  I was able to access the internet and LOAD a Microsoft malware removal tool, but again, the display was so large that I could not “reach” the RUN button to activate it. Next, I tried to reboot in "SAFE MODE", but that was a no-go. It would start to load the index and then freeze about halfway through. I tried safe mode several times to no avail, even safe mode with command prompt. Now when I boot and try to load windows normally, I will get the Windows XP splash screen followed by the screen that allows me to select the user account, but when I select one (I tried them all) it loads my desktop wallpaper, and then freezes. I get no desktop ICONS, no taskbar or "START" button. I ONLY see the desktop wallpaper. I'm afraid now I'm stuck...any suggestions? It seems to me that whatever fix there may be will have to come through the CD drive.

safe mode takes a long time to start up try doing it agin but wait like 15 minuts