Option Icon 322 or ATT Quicksilver 3G modem

[Eric Lee Elliott <linux ericelliott us>]

Each of my 3 computers lock when Option Icon 322 is plugged.  Latest 
version of Kubuntu does same.  Open log viewers show last 10 new lines 
of log are not recorded to disk due to system failure.  Power switch is 
only way to restore computer operation after modem is plugged.  Latest 
10.04 kubuntu also needs power off after modem is plugged.

People seem to have isolated cause of problem here in Nov 09 but I find 
no record of problem being fixed. 
http://www.pharscape.org/forum/index.php/topic,802.0.html

I think I know enough to see they have determined problem is HSO driver 
not cooperating with modem manager.  What should I do next?

Eric