Cannot log in to Google "Accounts" with Safari

Question

I cannot seem to login and use Google Services with Safari 2.04.
This started when I discovered I was unable to log in to google calendar in Safari, and became a support ticket to Google (which is still pending) and is really confounding me.
What happens is that I go to go to http://www.google.com/accounts and attempt to login. Once I hit the submit button, accounts page plainly refreshes. However, if I put in a totaly invalid user or password, I will get a message telling me the user or pass is invalid.
In Firefox, if I attempt the same scenario from google.com/accounts, after submit, I get the page that shows me all the services available for me to use, like gMail, calendar, etc.
Here's what I've already tried.
Safari troubleshooting...
- backup/remove ~/Library/Safari
- backup/remove ~/Library/Caches/Metadata/Safari
- backup/remove ~/Library/Caches/Safari
- backup/remove ~/Library/Preferences/com.apple.internetconfig.plist
- backup/remove ~/Library/Preferences/com.apple.internetconfigpriv.plist
- backup/remove ~/Library/Preferences/com.apple.Safari.plist
- backup/remove ~/Library/Cookies
After removing all the above, Safari is basically back to Apple's factory default settings. Even after all this, Safari still cannot log in. The same behaviour occurs when I hit the submit button, I'm just brought right back to the same page I started at, and am not logged in. Calendar never renders, or I'm left looking at the accounts log in screen.
It's notable that this issue does not appear to be specific to my google account, but specific to one particular Mac I use. I am able to login to google/accounts on my laptop, but not on my office machine using Safari.
To make it even more mind numbing, it seems to be specific to a user profile on my office Mac. I tried creating a new user account on this same machine, and with the fresh clean home directory, was able to login to google accounts, calendar, etc. So, obviously, a totally clean home directory, library, app support, etc results in usability.
I'm not sure where else to go with this. Are there other supporting files to Safari within my home directory that I missed removing to set it back to "clean". I cannot imagine the problem being specific to the application bundle for Safari since each user on the computer is using the same one, this behaviour must be related to something within the user home directory somewhere.
Anyone else seen this same behaviour and know how to fix it, preferably without just creating a new user and home dir.
-jim-

Answer 1

Hello Jim,
Check your router for firmware updates,not being able to sign into only 1
or some sites has been a symptom for some users see this topic,
http://discussions.apple.com/thread.jspa?threadID=635607&tstart=500
The other thing to check for is a firewall on your router that may need
adjusting.Are you using Net Barrier?
Post back & let us know, how you fare.
Eme
P.S you did make sure to QUIT Safari before removing the cache folder
etc.. correct, if it is not QUIT it will recreate the same corrupt, files & or folders.