I am using v1.5. Everything was working well earlier this week. Now it does not return a USPS quote to my site. It returns UPS quotes fine. I turned on debug-screen and got:

View Source:
Server: production Weight = 0.6125 Pounds: 0 Ounces: 9.8 ZipOrigination: 53045 ZipDestination: 24503-2433 Tare Rates - Small/Medium: 0:0.3 Large: 10:0 RESPONSE FROM USPS:
There is nothing after that.

The only change I made recently was to install a new version of USPS.com Click n ship Autofill button.

Any Ideas?