Bit of an odd one this. We have recently expanded the available carts from 32,000 to 50,000. All good here no problems. I have now however attempted to move some blocks of carts around and come across the following problem. In Audio browser, I am able to do what I like with carts 1 - 32768. As soon as any carts from 32769 onwards are selected, the buttons to move/copy/delete etc grey out. I have looked everywhere and double checked presenter / admin rights to specific cart changes, but all seems in order. The same situation happens whether I access the audio browser via Myriad (3.6) or Autotrack(3.1). Can anyone suggest what is going on here - or am I going mad ?