Finder Cover Flow Icon Preview not working

quicklooksnow leopard

I'm not sure what happened but I noticed recently that the Cover Flow icon previews were missing from my files in Finder. I'm using OSX 10.6.7. See the screenshot below – I'm expecting a preview of the file to be shown rather than the black document icon.

How can I get the preview back? The View Options have "Show Icon Preview" ticked.

Quicklook still works on individual files, just not in Finder.

enter image description here

Edit

Error message reported in Console:

/System/Library/Frameworks/QuickLook.framework/Resources/quicklookd.app/Contents/MacOS/quicklookd: /System/Library/Frameworks/QuickLook.framework/Resources/quicklookd.app/Contents/MacOS/quicklookd: cannot execute binary file

(com.apple.quicklook[5107]): Exited with exit code: 126

Edit 2
Output of command suggested by @jm666

lipo -detailed_info /System/Library/Frameworks/QuickLook.framework/Resources/quicklookd.app/Contents/MacOS/quicklookd

lipo: can't figure out the architecture type of: /System/Library/Frameworks/QuickLook.framework/Resources/quicklookd.app/Contents/MacOS/quicklookd

After seeing the error message, I restored the previous version of quicklookd from my Time Machine backup and the problem was resolved. I'm going to do a clean install of Snow Leopard just to make sure there are no other issues with my system.

Best Answer

hm. Removing my answer, because not helped.

So - you got a message into Console.log. So, come step-by-step. :)

What return this command?

lipo -detailed_info /System/Library/Frameworks/QuickLook.framework/Resources/quicklookd.app/Contents/MacOS/quicklookd

Should this:

Fat header in: /System/Library/Frameworks/QuickLook.framework/Resources/quicklookd.app/Contents/MacOS/quicklookd
fat_magic 0xcafebabe
nfat_arch 2
architecture x86_64
    cputype CPU_TYPE_X86_64
    cpusubtype CPU_SUBTYPE_X86_64_ALL
    offset 4096
    size 504912
    align 2^12 (4096)
architecture i386
    cputype CPU_TYPE_I386
    cpusubtype CPU_SUBTYPE_I386_ALL
    offset 512000
    size 399280
    align 2^12 (4096)
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