I havew an Apple laptop 2004 computer and everytime I try to use Yahoo mail a colored circle appears and revolves around the whole screen.How do I solve this from happening?

SOURCE: apple laptop screen malfunction

Not to step in on an argument but the output side of a laptop inverter can be up to 1.5KV.. (or 1500 Volts AC).. Milliamps in current generally but they can shock you.. (Wont curl your hair for the most part).. Just a wake up if you handle incorrectley. Am Waiting for a customer to spill liquids in one of the new Air units so I can take apart and get my fingers into.. (Or Drop or worse).. Weve repaired a few of the New Black/Macbooks/Video as well as the whites and repaired more than too many of the old G-4 Ibook problems.. Will keep an eye out on these Now Hot-box Intel Models.. Failures are Inevetible in my opinion.

SOURCE: Turning on my macbook- all i see is white screen and 'no' sign

Apple has a troubleshooting document about this here: http://support.apple.com/kb/TS1892
Normal procedure is to reset the NVRAM and PRAM then "remind" your Mac where to find the system folder. (This problem sometimes happens when the system folder is moved, renamed or deleted.)
It may be necessary to reinstall the operating system. (Fortunately, if you use the "archive and install" option, you can do this without erasing the hard drive or losing your user data.)

SOURCE: My Mac laptop won't start

my laptop is doing the same thing if you find out how to fix it PLEASE email me! [email protected]