I have verified on two other Vista PC's that webmail.shaw.ca can not be
accessed. All three machines have Office 2007 also installed on them so
perhaps that explains the different experience Peter and most others have had.
After installing Mozilla, all is well and after booting back to XP with IE7,
all is well. As such the problem is definately with the version/config of
Vista's IE7. The Vista IE7 Beta 2 build # is 200 points older than WinXP IE7
Beta 3.
Unless someone has a bright idea, I think the prudent thing to do is wait
for B3 for IE7 on Vista, or much more likely for Vista RC1 to be released
with RC1 of IE7.