Hi All, Just to start this is my computer; Macbook Pro Mid 2012 i7 2.9Ghz 8GB 1600MHz DDR3 Intel HD Graphics 4000 1024MB 750GB SATA Disk Mavericks 10.9 For the past month my computer has started running quite slow and seems to lag every now and then, even when I just hit 'storage' in the 'about/more info' window... I have gone into recovery mode and every now and then errors pop up, which disk utility fixes. You can read about this here; (this is my post on the apple forums) https://discussions.apple.com/thread/5546926 Last night I booted my computer and it was almost unusable, so I did a restart in recovery mode did disk utility and then, aside from the Printer error that got fixed I had this; "Warning: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAg ent" has been modified and will not be repaired." Now I've been reading everywhere that I can ignore this latest issue, but if this is the case what can I do to find out what is wrong with my macbook?! Currently I have 130GB free space so I haven't completely filled up the space and there really shouldn't be any reason to cause the computer to go slow. Anyone able to help please?