Hi James.

For some reason which isn't quite clear, Dell computers sometimes need a larger ASIO buffer size. It sounds as though, as you build up more tracks, the buffer starts to cause problems. Try increasing to 1024. It's also a good idea to access the C400 drivers through PT audio prefs instead of directly. On some systems, going to the settings via a desktop shortcut doesn't always change the settings for Power Tracks. (Don't ask me why!)

The other question is - does the system run ok at 16 bit? If it does, what sort of music are you recording and do you need 24 bit? The advantage of 24 bit is improved dynamic range, but as Rock and Pop typically uses less than about 10 percent of the available range of 16 bit is it necessary? Also, if your end product is 16 bit CD, using 24 bit means that the final mix has to be dithered down to 16 bit which is an extra process and one which some people say introduces side effects.

rharv is the mastering man, so he probably has a more informed opinion on this. If you're reading this rharv, what do you think?

ROG.