I just replaced a HP Ultrium 960 The unit is good(fresh refurb from Certance),
but when I try to run a backup the message
Negotiating Block Size and Media Header stays on the screen forever.....
I canīt stop or unload the modules at that state.

Any ideas where I could look?

Adapter 2940/NW6.5 / BKUPEXEC 9.1 /HP Ultrium 960