my mac book pro is mid 2010, snow leopard.
The root system is Lion and freezed with 171 Certificate of Authorities at Root System in Keychain access.
When I worked with Disk Utitility from Mac Installation Disk, under the erase the bottom showed unmounted and at the installation log there was sleeped and no completed format the hard disk.
Everytime I open it takes quiet a long time to start.
Unseen files were pre and post installed without showing the details.
I have a lot of copies of some secret files and capture screens for you to see. So tell me where to send you the files. It will give you the picture of the problems at me.
You may give me a new contact person for better solution, thx.