Mac,
Well things change again. I'm so frustrated with this my troubleshooting skills and methods are down the tubes. This I have been doing for hours. Load a song, save it, hit play and it's perfect. May change tomorrow. After that it's back to the same jitter. So once I load and save what changes to make it play right and then revert back after closing it.. Does saving it load it into Ram?
Only 8meg

BTW I dug out the old reliable PII 400 with 256 Meg Ram. When I first got this back in 1999 i used to be able to record bands with 12 tracks easily. No real time effects though. Today I installed Power Tracks ( same as RB ) loaded a song onto the HD and then into PT. Seven tracks total all originally RT. Hit play. The audio barely played. Would stop if I touched the mouse and the scroll would jump about every 6 bars or so and stop and jump.
There's something funky about the code in these two programs.

John
ESI Gigaport HD+
Lenovo Turion II /4 Gig Ram/ Win7x64 be
15.6" Monitor
"The only Band is a Real Band"
www.wintertexaninfo.com/BANDS/JohnnyD.php