Thanks for your Reply Noel....and yes, I have read it a couple of time really. I had already been a registered user of SampleTank so I didn't need any help with Authorization. I will look at it again but I THINK I read from PG himself as I was installing ST 2.5 that it should go in PROGRAM FILES and not PROGRAM FILES 86. I just might try re-installing in PROGRAM FILES. I will take a look at jford and see where he suggests to install it. Thanks again for your reply. I have issues with OMNISYNTH also...where is that supposed to be installed? I have installed it in PROGRAM FILES 86 ...IK MULTIMEDIA.......SAMPLETANK 2.5. Any help is always welcomed and I'd be grateful for it.