This is known issue introduced by OSX 10.7.3. We are working with Apple on a plan to address this.
Thanks, I just read a similar post. What I find odd is that I've had 10.7.3 since October, and this has just started happening this week.
> I've had 10.7.3 since October
Mac OSX v10.7.3 has only been available since 1February.