I forgot to mention: regarding the playback problem, I have tried changing the buffer size in the Presonus FireControl, but to no avail.

Also, I have just begun experimenting with recording. So I am only recording one track at a time (acoustic guitar or vox) and have recorded only two total in a given project. That said, I don't believe there is a heavy audio load being translated to Cubase.

Another thing I should bring up as a potential problem is that I am running from a six-pin firewire (Presonus) into a four-pin (PC). I don't know if there is a problem there. As I said in the previous post, everything is as upgraded as I can get it right now (at least, as far as I know)including the firewire port.

Thanks again for your help!