Hello. Im a huge problem with the Reaper 4.151 (so the newest) but I noticed that in the previous version. It went wrong when I change the OS from Vista 32 bit to Win 7 64 bit and of course the drivers of my sound card. I have a Sound Blaster HD with ASIO4ALL 2.10 running. I noticed that there is not a separate installation of 64 bit drivers so everything would be fine. I get a BLUE SCREEN every after crash of REAPER. I thought that it was a problem of specific VST plugin because I get the BLUE SCREEN just after loading of VST PLUGINS in specific project. In order to check that I opened the "crashing" project with every FX off-line and I was turning on one after the other but I didnt get any crash. Today I got a BLUE SCREEN with any plugin loaded so I think that it is a BUG of the APP or it is something wrong with ASIO 4 ALL. Im not sure so I have to check it with ANTIVIRUS closed.