Maildrop '-10000' error on OSX 10.8.3

Hi fellows ... and Simon,

The dreaded '-10000' error is back : no changes in my configuration, at least that I can think of.

I get this error when I try to load any email with MailDrop :

Jun 18 08:12:06 MacBook.local Maildrop[1711]: scriptFile is /Users/xxx/Applications/Salesforce/Maildrop.app/Contents/Resources/mail scripts/Add Email to Salesforce.com.scpt
Jun 18 08:12:09 MacBook.local Maildrop[1711]: An exception was thrown during execution of an NSScriptCommand...
Jun 18 08:12:09 MacBook.local Maildrop[1711]: response XML not valid SOAP, root element should be Envelope, but was html
Jun 18 08:12:10 MacBook.local Maildrop[1711]: error executing script /Users/xxx/Applications/Salesforce/Maildrop.app/Contents/Resources/mail scripts/Add Email to Salesforce.com.scpt : {
NSAppleScriptErrorAppName = Maildrop;
NSAppleScriptErrorBriefMessage = "AppleEvent handler failed.";
NSAppleScriptErrorMessage = "Maildrop got an error: AppleEvent handler failed.";
NSAppleScriptErrorNumber = -10000;
NSAppleScriptErrorRange = NSRange: {227, 24};
}

Can you fix this ? Is there a workaround ?

Rup