I've seen other threads that mention problems Mac products have with online financial services, but I did not find any discussing specific problems in working with the Vanguard investments site in Safari.
I can log in and access my accounts, but certain functions, such as adding outside investments, cause Safari to freak out, cycling the window through several screens without any input from me -- and without allowing me to input the info on those screens as I need to. (Safari also cannot successfully complete online bill-pay on the Washington Mutual site... regardless of the user-agent I specify...)
Any ideas or similar experiences? Thanks!