Random times sometimes at startup the screen will turn blank white. Sometimes if i press ctr alt del it will go back to regular screen most of the time when i do it it remains blank. When it turns blank the only to fix it is to shut the computer off it is starting to become tedious
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A white blank screen? That sounds like the virus changed your display settings. Click Ctrl+Alt+Del to get to the task manager. Press and hold the Ctrl key plus the Alt Key then hit the Del key. When the task manager opens up Click File at the upper left corner of the window then select New Task RUN. When the create New Task Window opens type: explorer.exe and hit OK. See if it starts populating your desktop icons and shows the start menu and task bar. If so, the virus changed your settings.
To change your display background click Start/Control Panel and look for Display or Appearance and Personalization. When it opens select the Desktop tab and change the desktop background. Hopefully the white will go away.
You may have to get into Safe Mode to do the above if the virus disabled the Task Manager.
1. try single-user mode (hold down Cmd-S during startup tone and sequence). this should take you to a command-line screen where you can run the suggested fsck command: /sbin/fsck -fy (at the command prompt). 2. go here to see complete startup procedure in situations like this: http://support.apple.com/kb/TS1417. 3. if that doesn't work, it sometimes helps to start the computer in target mode while attached to another computer via Firewire (hold down the "T" key while starting up). then you can navigate through your ~/Library/Preferences and find the most recently modified ones and pull those into a test folder on your hard drive somewhere (just create a new folder to hold them temporarily). then restart as normal. sometimes just yanking the most recently modified preference files (.plist files) works.
My Sansa has a similar problem. Sometimes when the Sansa turns on (after the Sandisk logo) the screen will either turn black, blue, or black and white stripes. The player still works, but it is hard to navigate without the screen, obviously.
What I end up doing is letting the backlight turn off and then pressing any button. Sometimes when the screen comes back, the display is allright again. But sometimes it takes more than a few tries. Turning it off and on again seems to work a little better, but it is more time consuming.