Blank Screen both External and On-board after apple update

I'm not familiar with logmein but that appears to be the problem. If it was running before you started the software change I would bet it's a software problem. If you do not have an installation disk consider buying a 10.6 full installation disk. I don't know if 10.7 will be release on disk yet. Either one is only $29. You can reformat the drive and install a system. You can also go the Target Mode route. Borrow another Intel processor Mac. Hook them together with a firewire cable. Start your machine up holding down the "T" key. Your hard drives icon should show up on the other machine. You can now try running Disk Utilities to repair your drive or use something like SuperDuper to clone the working system from the other Mac to your hard drive. http://www.shirt-pocket.com/SuperDuper/S...