Barbara,
I can't read my .tif files through Amazingcharts. It gives an error message. I wonder if AC comes with a program that switches off reading of tif files when you don't subscribe to them.
If you can't read any tif files, this may be due to you updating to MS OFFICE 2007. MS OFFICE 2007 installation by defaults deactivates MDI. If that is the case, then you will need to reinstall MS OFFICE and check the box that will put in MDI (Microsoft Document Imaging). MS wants to use a newer tif formatting file (which I find cumbersome to use and does not play well other tif version---i.e. you will need to install MS OFFICE 2007 in ALL OF YOUR COMPUTERS on the network and with other systems you interact outside of your network). Just another way to get you to cough up more of your hard earned dollars.