This label alteration does not occur only with downloaded files. Any file I add to the Desktop gets changed to the "blue" label. I have been able to use QuicKeys to monitor file additions and change the label back, but I'm bothered by why I have to do this, that what prankster code I've had slip through. This does not happen if a new file is added to any other folder already on the Desktop or anywhere else.
For the past 3 days, any file I download gets assigned a Finder label which I didn't specify. I don't use this feature of the OS. It's annoying to have the label "blue" assigned, which I then have to manually remove. I'm asking for help in stopping this little trick, and how did this start in the first place? Mac OS 10.6.5, iMac i5. Thanks for any help.