Good Morning folks, hoping some of you may be able to help with what I've been told "must" be a failed motherboard. Without warning last week 2.5 yr old 13" Macbook pro froze and failed to boot properly. The symptom I am getting is a blank blue screen with no icons. I did a bit of reading and found this could be caused by an HDD issue, startup item or corrupt startup disc info. Here's what I've done so far: -tried booting into safe mode - I am able to log in but get default desktop and still no icons -reset the RAM - no change -booted into single user mode to do a disc verify/repaid - HDD seems to be ok so no change -put into target mode and connected via firewire - HDD is readable, verified and repaired disc again (backed up necesary files..) - no change -tried to boot from OSX DVD to reformat and reinstall osX, WOULD NOT BOOT FROM DVD Now, this last symptom is the one that has caused 3 seperate MAC certified techs at 3 different shops to tell me its the MoBO. They all said if it won't boot from an OSX DVD, it's the motherboard. I'm looking for a bit of insight and advice. I was going to use target mode to reformat and reinstall tonight and failing that pay for a $50 MoBO diagnostic just to make sure it truly is a paper weight. Any other ideas?