Comcast version of N360 - can't find "check for new version"?

Hi,

Would like to update to version 5.1.0.29 of the Comcast provided Norton 360 but I can't find "check for new version" under support options.  One of my PC's prompted me earlier today without any intervention but I don't want to wait to be prompted on the other one.  Am running Win 7 with IE9 on the other one & I understand there are enhancements for IE9?

Is there anyway to get it to check right now?   NIS 2010 had a check for new version right under the support tab.

Thanks,

Sn0otsly