Hello there, I recently dusted off my old Logic Audio PC after it had been out of action for a couple of years (had a couple of kids in the meantime...). The hard drive reported an error and though I did get it to boot once or twice, it wasn't happy at all. So I replaced the hard drive, did a fresh install of Windows XP Pro, reinstalled the sound card (M-Audio Delta 66), the midi interface (an old parallel port MOTU Micro Express) and Logic. I now have a problem when trying to use audio instruments - with the latency on the sound card set a 'reasonable' level, I get lots of crackles when running an audio instrument and some midi - which is what I want to do . When I set the latency high enough to stop the crackles, the audio drifts out of time. This system used to work pretty well - it wasn't perfect, but I could run a bunch of audio tracks, plugins and some midi and it didn't usually complain. If anyone has any ideas as to how I can get this old beast working again I'd be delighted - I don't really want to have to buy a Mac, I have too many computers already. Happy to provide more details on the setup if anyone is interested!