I have a chronic problem with Steinberg's Hypersonic 2, I hope this is the right place to post about this. Here's what happens:
I make a piece using a Hypersonic instance and a few patches loaded in it, and everything is okay. I save my work and shut down the computer. Then, I come back the next morning and start Cubase and load my project to resume work, and Hypersonic will have some of its patches/channels muted. Not only are they mute, but if a note is triggered on them, it then mutes ALL of Hypesonic. In fact, it's not really a mute, because there's nothing I can do to get the sound back, and I checked all the controllers and there is nothing suspicious. I really smells like Hypersonic's audio output crashes internally. The only work-around I found is to move the faulty patches to a new instance of Hypersonice, but next time I will load the project, this instance is likely to get screwed up too!!
This doesn't happen with all projects, but once it happens with one, it will happen everytime I load it, restarting cubase or the computer won't help.
This is driving me crazy since it makes it near impossible to work, and Hypersonic has been discontinued (THANK YOU MR STEINBERG) so I guess there's no update to fix that.
I'm running Cubase Studio 4.5.2 under Windows XP SP2, on a AMD dual code 6000+, 4 gb RAM (/3GB switch). (Same problem with Cubase Studio 4.0.2)