My Best friend has checked his e-mails(2 yahoo accounts) at my computer several times and now when he tries to check those accounts from his home computer --a box opens to let him in but just goes white ,, he never actually gets in . . . though he can still get into these accounts from my computer. He has other yahoo email accounts that he has never checked on my home computer and he can still check them from his computer.There is a third website ( an internet board) that once he accessed from my computer is now inaccessible but he worked around that by re registering with a new name etc.
My computer is a Dell Vista laptop(browser Firefox) that uses DSL and my friends computer is an older XP desktop(browser IE) that uses dial up
Whats going on?
Any help would be very appreciated.