Replaced RAM with 2x4 GB and brought it to Apple Store at 1am! Hardware passed all tests, yay, and they did a disk repair from their startup and told me the problem is software. It was fine when I left the store but of course when I returned home the problems began again. So, I have it started in safe mode and want to erase the disk and start over. The problem is that I have the SL DVD that came with the computer and now it is somewhat sacred and would rather at least be able to do the erase from another startup disk, which I don't know how to create. I made a DVD master from the SL Install Disk but can't seem to make a duplicate because when I use put a load a blank DL-DVD, Disk Utility doesn't 'see' it.


Mid 2010 MacBook Pro 13"
2.4GHz, 750GB SATA HD, 8 GB RAM, OS 10.7.5
1 HDX1500 2TB Ext.HD, 2 HDX1500 1TB Ext.HD
HP Laserjet 6MP printing postscript via 10/100 Intel print server
Netgear WN2500RP Range Extender (Ira rocks!)
Linksys WRT1900AC Wireless Router
Brother MFC-9340CDW Color Laser
iPad Air