Greetings! I have had nearly identical problems installing SonicStage. I am running Windows XP Home, version 2002, Service Pack 2, with automatic updates. Computer is Dell 1.50 GHZ, 256 MB RAM player is MZ RH10 (for what that's worth) I upgraded to XP from ME (when I tell Sony Support that it is not factory-installed OS, they will not help. That seems highly BOGUS). I have tried all recommendations listed on this forum, except the new OpenMG install, which I will try tonight. I receive the same error message (Error Code 00005607). The installation then proceeds, but I cannot open SS, says cannot find OpenMG Secure Module. I tried installation from the supplied CD; from SS3.2 downloaded from web; and SS3.3 downloaded from web. Same problem persists. These installations work fine on my computer at work, Windows 2000, SP4. Details from aborted install are attached. Any help will be much appreciated, as this has become very frustrating! Thanks Details.txt