I have a 17" Macbook Pro with 4GB RAM and 3.06GHz processor. It is just 5 months old. Since the past 3 days I have been experiencing frequent hangs where one application or sometimes several applications hang with a beachball(rainbow) wheel. The hang stays for anywhere from 10-50 seconds and is repeated at anywhere from 5-30 minutes. It is starting to get really annoying. I did a repair disc several times untill it said OK. I also fixed permissions. I also did a fsck -fy from single user mode. Yet the problem persists and the Repair Disc utility finds problems every time i reboot my computer. I still cannot find a solution to this problem (Apart from a zero wipe of the Hard disc and an OS reinstall but it seems far fetched. I checked the console and everytime there is a hang the following messages are displayed. 1/25/10 10:00:30 PM kernel disk0s2: I/O error. 1/25/10 10:00:30 PM kernel 1/25/10 10:00:30 PM kernel 1/25/10 10:00:30 PM kernel /SourceCache/AppleFSCompression/AppleFSCompression-24/Common/commonUtilsKern.c:337: VNOP_GETXATTR com.apple.ResourceFork for /System/Library/Spotlight/Automator.mdimporter/Contents/MacOS/Automator: 5: error 1/25/10 10:00:30 PM kernel /SourceCache/AppleFSCompression/AppleFSCompression-24/Compressors/Type4/compressorType4Imp.c:88: fh_getxattr /System/Library/Spotlight/Automator.mdimporter/Contents/MacOS/Automator: error 1/25/10 10:00:30 PM kernel vnode_validate_compressed_file_Type4 error: -1 I know I/O error means bad sectors so erasing might help but i need help before i go to that. Also there are 2 blank lines after the I/O message. And plus the next 2 messages have something to do with automator , spotlight or some compression. Please help. Thanx in advance. PS: uploading a screenshot of the console window.