Stupid harddrive error


WheI run Disk Utilities / Disk repair or AppleJack I get the error:

Verify and Repair disk “Mac OS X”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Illegal name
Checking multi-linked files.
Checking Catalog hierarchy.
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume information.
Repairing volume.
The volume Mac OS X could not be repaired.
But when I run TechTool 4.0.6 there is no complaints at all???

By the way, There is some thing and have been for a long time that is messing up my harddrive. I have changed harddrive AND the RAM.