I have 3 browsers running on Vista so that I can check website compatibility on all 3. Everything looks fine on Safari except that I cannot download and read PDF files (I can with FF3 and IE7). I realized that the Safari (version 4) on Windows that I have doesn't have the Adobe plugin, but every time I try to install it the system tells me that I already have a better version installed (9.1) and won't let me add the Safari browser to the mix. Any suggestions???