I was wondering if the Mini DisplayPort to VGA was worth buying since I read many bad reviews in the product page especially compatibility issue. http://store.apple.com/us/product/MB572?mco=MTkzODk0Nw I own a Dell 2407WFP. Has anyone bought it and does it work fine? Or, should I just wait for an after market dongle (if someone decided to make one)? Thanks.