Ok, so I've been switching computers the last couple of weeks thansk to girlfriend issues and having to use netbooks for a while until I got my old rig back online. So, now when I try to use Prevx (paid) it gives me the message; "Error: (CHK007) No further system changes are allowed on this license". What is that for bu******? I can't even remove my current installation which in case you wonder, is not longer active. I try to remove it but My Prevx won't let me. I have paid for the program and I'm not allowed to use it. For every hour I've spent on Prevx and helping out with glitches, and this is what I get? This is utter garbage. It seems like there's a three time only type of thingy when moving licenses on one computer to another. Guess what? I'm done with **** like that. Oh, by the way, I have uninstalled Prevx EVERY SINGLE TIME before finally getting to use it on a more permanent computer.