Hi Bob I recommend installing the 32 bit version because all of the loops and samples will work and make sure that it installs into c\program files x86\cakewalk\vstplugins I also would use the 32 bit version of sonar because all the plugins work because I had the 64 bit version installed and everything wouldn't work properly. ----- Original Message ----- From: info@xxxxxxxxxx To: ddots-l@xxxxxxxxxxxxx Sent: Thursday, May 05, 2011 8:03 AM Subject: [ddots-l] Dimension again Hi everybody. Some of you may have read about my computer trouble. It looks like I may have solved most problems however Dimension remains. D!J!X! explained to me that Dimension 1.0 has to be registered on a 64 bit system before upgrading. I have the duel layer DVD that came with Sonar 8 and I assumed I was installing Dimension 1.0 but the release notes also mention 1.5. All attempts to register Dimension fail because it's "not properly installed". Any help is appreciated. Bob.