description: Tracks begin to displace when more than 15 or so tracks are playing. Playback of some tracks is off and the beat sounds out of place. Press stop and begin playback and it's back in alignment. Eventually, it happens again. Visually, the tracks look fine, but sound displaced.

I have the studio settings exact to the number of tracks. The hardware buffer is set on 1. I'm only using the tracks overview window. No other programs are running.

The size of the memory or CPU speed is most likely the problem. Does anybody else have these problems w/ DP4? I'm sure more memory would help, but does anybody know the best way to do that?

Machine Model: Power Mac G4
CPU Type: PowerPC G4 (2.1)
Number Of CPUs: 1
CPU Speed: 733 MHz
L2 Cache (per CPU): 256 KB
Memory: 256 MB
Bus Speed: 133 MHz

OSX 10.3.9

MOTU 828, DP 4.0

The CPU speed and 256 MB of RAM is not enough for what you're doing.
The reason that you still can here some audio is due to a new dynamic CPU process in DP4.
It prioritizes tracks and plug ins.
If this were DP3 on OS9, your computer would crash.

I missed spell a word "hear" in the previous post.
It should read:
The reason that you still can hear some audio is due to a new dynamic CPU process in DP4.