Ezdrummer and UR824 crashing Cubase 7 32bits.

I’m having troubles with EzDrummer , first I thought it was a Cubase 7 Problem, but now I’m thinking it’s an UR824/EzDrummer problem.

Everytime I load EzDrummer into a project with audio tracks it crashes Cubase, and when I try to reopen it, a message saying that “The audio card wasn’t present”

Also I can’t use the UR824 unless I reboot windows.

Anyone with the same problem?

(just in case I tried using Cubase with admin rights, still the same problem)