Some programs, like our i1Match program depend upon the computer knowing who has administrative rights, and which programs have full read and write settings. These settings can get changed during the update of the operating system, and it could cause i1Match to behave irregularly.
Every time you change the version of OS (going from 10.6 to 10.6.1 for example), Apple recommends that you launch Disk Utility from the Apple Utilities folder, and repair your disk permissions on the boot hard disk (top line).
Select this line, and the repair disk permissions button will become active. Click the button, to initiate.
Restart your Mac, and now your Applications will have been corrected for read and write permission.