Installed 32track le version, won't run with Reaktor crash crash crash

[Christian]

Updated to 32 track le version. Now every time Reaktor is running and I switch back to pro tools page, it can't seem to draw up the page. Computer just freezes. Reaktor turned off, it's cool. But then Reaktor won't run unless it's on. Tried rebuilding desktop, trash all protools preferences in system folder and restart wit h new extensions. Same Problem. I have a G4 400 mhz with 700megs of ram. The only thing that I have not tried is the fact that my protools is on the same 15 gig partion of the OS drive. But I only run audio, no net or graphics nothing else. Any ideas? Thank you, Christian