Thumbnail caching can occasionally cause problems in applications in Windows, so you may need to turn this feature off. In Windows XP, its very easy to do through Windows Explorer. You go to Tools –> Folder Options –> View and deselect Do not cache...
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A great lathe operator commands several times the wage of an average lathe operator, but a great writer of software code is worth 10,000 times the price of an average software writer.