What causes vertical Lines on an iMac screen?

Answer:

This is well known issue with many iMacs G5 and Intel based. It is probably a defect in design. See the following link for a possible law suit against Apple.

http://www.cultofmac.com/class-action-lawsuit-over-imac-display-problems/6562

There is also an online petition to sign at:

http://www.petitiononline.com/mod_perl/signed.cgi?maclines

First answer by Daltonmaynard. Last edit by Kattan69. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 1 [recommend question].