So I have a wierd problem. Sometimes when I paste into a spreadsheet it pastes it twice. So I may paste in 3 columns of data and end up with 6 columns. The source doesn't seem to matter as it can be from emails, other spreadsheets, plain text, even data from the same worksheet. This has been going on intermitenly for for a month now. Has anyone else run across this or have any ideas on how to fix it?

Thanks.