Auto Update in FF1.5 Beta 1, how long?

Hi

I've currently FF 1.5 Beta 1 installed and I'm waiting for the Auto Update 
to do it's job. But to this day, nothing happened, altough the program was 
connected daily for at least one hour (usually more) on the net. Should I 
continue waiting or send a bug report? When launching "Check for Updates" FF 
finds the new version, but I wanted to test if Firefox is able to update 
itself. It is actually set to do automatically the job.

Thanks for your help

Sylvain