Repair permissions, not repair disk. See the link I gave above which has links to apple's instructions.

Yeah, I read the instructions. but its the permissions of the disk. What I mean is, when you go to the freakin' disk utility, and click on "First Aid" you have to select a drive to "verify/repair disk permissions". I'm not clear on which one to select as I don't know what is meant by <I>start up disk</i>
Plus I ran "verify permissions" as per the instructions and there seems to be no issue whatsoever.
I have also decreased my shared library massively and am downloading one file at a time. If I do this, no freeze.