systems management homepage on dl380 g7 is blank

I'm trying to bring up the SMH on a DL380 G7.  Going to the ip address:2301 gives standard info about re-directing to https:/...:2381.  I do that and confirm the security exception.  The browser url displays:

https://192.168.0.13:2381/cpqlogin.htm?RedirectUrl=/&RedirectQueryString=

but the window is blank.  Any suggestions on what to check?

Thanks!