FedEx Webservices suddenly caused blank white page checkout_shipping

At 1:30 today, our site's checkout_shipping (and shipping estimator) went to a blank screen live for customers.

I tracked it down to the FedEx Web Services module, I have v1.4.5.2

Set it to false and checkout came back to normal.

Hope this helps someone else frantically ripping their hair out.

Now to get FedEx back!

If you are really using ZenCart v1.3.8a - You need to UPGRADE NOW before you are hacked
Maybe you have already been hacked

I suggest that you follow all and I mean ALL of the steps listed here
http://www.zen-cart.com/wiki/index.php/Recovering_From_Hacks

Blank Page issues
http://www.zen-cart.com/content.php?124-i-am-getting-a-blank-page-%28or-blank-part-of-a-page%29

FedEx appears to be down on my site as well ... I had to turn it off on an older version of FedEx and on a newer version FedEx produced and message that there was a server issue ...

We tried to make a FedEx shipment on the FedEx site - no go. The label did not print out the correct and full information.
Looks like FedEx is having some major issues.

For being 1.3.8a, the site absolutely rocks and we have put every (and then some) safety features and adjustments as listed.
We are working on upgrading to 1.3.9h as the incremental step to 1.5. It's a far from stock site. I wish the original hire we had did not remove the upgrade button out of admin years ago!

i just got confirmation of known issues with web services from a fedex phone rep.