Anyone get it to install on recent Chromes on Win7? 21.0.1145.0 dev-m doesn't think it's installable, and when I forced it through the developer panel, it cras

Anyone get it to install on recent Chromes on Win7? 21.0.1145.0 dev-m doesn't think it's installable, and when I forced it through the developer panel, it crashed, restarted, and crashed in a loop til I disabled it. Is it just me?