Mac Av/ Asio Switching Problem - Logic 4.8.1, playback problems - ASIO/Mac AV & Logic Options

[willm]

Hi

I was travelling over the holiday and did a lot of work on sample-based compositions using Mac AV and headphones. I clicked OK when asked to assign objects to Mac AV instead of ASIO.

Now I'm back home I've tried reassigning objects to ASIO. On several pieces the bassier samples are now distorting. These are samples that had been fine before I began working with Mac AV. Other samples are fine in both modes. I'd much prefer to be able to work using ASIO but I don't want to have to re-import the affected samples and reset all the hyperdraws and plug-ins.

I'm using Logic Platinum 4.8.1 with Mac OS9.2 on a fairly recent Ibook with lots of RAM (plenty of which is assigned to Logic). I have an EgoSys Waveterminal U2A USB box.

Thanks for listening
willm