what about your RF version? We have such bug fixed in current code.
I current use 3.1.3, but I test to in 3.1.0, 3.1.1 and 3.1.2.
Could you please check under 3.2.0 snapshot?. And inform us about browser you use. But it strange.. I'm sure that we've merged the fix in branch.
I'm using ie 6.0 and firefox 2.0
I get the last snapshot, richfaces-ui-3.2.0-20080103.054551-64-bin.zip, and deploy on my application
I got several errors in another components to, but is not related to calendar.