Hello Andrew,

Now you mention this, I just checked the error text and you are correct, its a little different then before! Now the error text with the Sonar VS-100 is :

"Access Violation at address 1000285C in module Rdaw1099.dll Read of address 0000108 at: 100285C"

while the message with the Roland UA700 was :

"Access Violation at address 100025B9 in module Rdaw1024.dll Read of address 0000108 at: 100025B9"

So the .dll is different and the address range is some different too!

And to your 2nd question, I already got the error today without the keyboard connected.

Hope this gives some new clue.

greetings,

Valentino