OSX Lion jpeg 'preview' images are blurry after altering them

When i edit a photograph in photoshop (cs3/cs4 etc, it doesnt matter which version) the preview of that image goes blurry after its saved. The image is the full res still and hasnt lost any quality but when i have the icons that are of a large size they appear really blurry and 'low-res'
I know its a small gripe but it makes things difficult as a photographer when im trying to organise images that perhaps look similar or i want to see as a whole set.

Hello, sorry, I don't know the cure for this, but as a photographer you might have a look at Tr-Catalog, where you can choose the size thumbnail/icon/detail...
http://www.tri-edre.com/english/tricatalog.html

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