This indicates it could not find a valid system folder to start from. You can try reinstalling the OS, but this is often a sign of a failing hard drive.
maybe because your on white and black. :P there will be a help section the mac website or were you change the settings there will be some help.
at the very very very top left of your computer screen you press file and then it drops down next you just press sign-out
http://www.ofzenandcomputing.com/fix-mac-blue-screen-boot/
Sign out of .mac and sign back in, The preference pane should update.
This question cannot be easily answered because it is not clear. To cancel an Apple ID account used for things like the Apple Discussions forum, you may need to ask Apple directly to do so. You can, however, always cancel your subscriptions and remove information from your profile. To delete a user account in Mac OS X, go to System Preferences > Accounts > Click on your account name, and click the minus sign "-" below. There are other types of accounts, as well, such as .mac.
If you have Mac OS X 10.6 (Snow Leopard) then QuickTime can record the screen - select New Screen Recording from the File menu. Try Snapz or screenflow, both of them record screen for Mac. or check more at http://en.wikipedia.org/wiki/Screencast
This question cannot be easily answered because it is not clear. To cancel an Apple ID account used for things like the Apple Discussions forum, you may need to ask Apple directly to do so. You can, however, always cancel your subscriptions and remove information from your profile. To delete a user account in Mac OS X, go to System Preferences > Accounts > Click on your account name, and click the minus sign "-" below. There are other types of accounts, as well, such as .mac.
Open Mac Mail. Click Mail > Preferences > Accounts. Click the + sign on the bottom left of the screen. Follow the instructions to add you email account to Mac Mail. It is simple and easy. Once you put in your email address and password your Mac will pretty much do the rest.
No, it is free from the Mac App Store. Follow the link below from a Mac to download from the Mac App Store.
The mac pro does not have a screen. It is used to optionally connect to an imac and give it more speed and more memory and hard drive.
To change the screen resolution on a mac:Open system preferences by:clicking the apple menu at the top of the screen, then clicking on system preferencesClick on displaysHere, you will find all of the screen resolution settings that your Mac can support.
Buy a second monitor.