What is this???

[lexus]

 

[Silentwave]

This means you should open Disk Utility (under applications> utilities) and repair disk permissions for your boot drive.

 

[WildCowboy]

Close System Preferences, then look for a file called "com.apple.preferencepanes.cache"...it's in <your user directory>/Library/Caches. Drag it to your Desktop and then try opening System Preferences again. If all looks well, you can go ahead and trash the file you dragged to your Desktop.

It's a very common bug on the Intel Macs...it's been around for quite a while now, but Apple doesn't seem to have addressed it.

 

[lexus]

Close System Preferences, then look for a file called "com.apple.preferencepanes.cache"...it's in <your user directory>/Library/Caches. Drag it to your Desktop and then try opening System Preferences again. If all looks well, you can go ahead and trash the file you dragged to your Desktop.

It's a very common bug on the Intel Macs...it's been around for quite a while now, but Apple doesn't seem to have addressed it.

That worked thanks, I will repair permissions anyway now.

Thanks