I have a VIP account with grooveshark and I LOOOOVE this app.
I tried downloading this app after rooting BB v.04 (got a replacement droid and I'd previously run on this same ROM and had grooveshark running w/ no problems).
Well, I can't download it from the market. I go to grooveshark in the market and click on it and a button at the bottom says "cancel download". There is nothing being downloaded. I have tried to find it in applications (through settings to delete) but it's not there.