Ok, as all problems come in pairs, I have a minor issue (I hope). Yesterday, time machine threw me an error that it cannot complete the backup as it cannot copy some files to the backup drive. I checked and installed time machine buddy to easily check the logs. It turned out some file was the bad guy. It was a personal, unimportant file so I deleted it. Ran backup again, same time machine error. I then checked in more detail, and as suggested I deleted from my backup drive one long name with .inProgress extension package, while time machine was off. Turned time machine back on, still errors. So I though my drive could be corrupted or something. Opened disk utility checked and fixed permissions, then same thing with the disk. 1. I get First Aid Failed Disk Utility stopped verifying Macintosh HD because the following error was encountered: Filesystem verify or repair failed. and with these details: Verifying volume Macintosh HD Performing live verification. Checking Journaled HFS Plus volume. Checking Extents Overflow file. Keys out of order The volume Macintosh HD needs to be repaired. Error: Filesystem verify or repair failed. 2. Ok, so I didn't have my Leopard cd with me. I tried to safe boot the MBP. It booted up successfully. I know safe boot performs a disk check, so I though problem fixed. But no, still there. 3. I tried to boot in single-user mode and use fsck -fy. Unfortunately after running it consecutively for around 25 times, the same answer: ***** FILE SYSTEM WAS MODIFIED ***** 4. My MBP came with tiger, so I found the original tiger CDs. I tried to boot from it holding C key to use disk utility. had one kernel panic, and once the mac froze. Nothing happened. I also tried to start the "installation" from the OS, so that I do not have to hold the C key, but same as above. Didn't work. Any suggestions ?