Any Refuse User/2?, Still Reason freezes with reFuse Options

[zeze]

Thank you Mr T. for your replay,

I tried what you suggest, gave Reason the minimun memory and to reFuse 60000K ram, I also tried what Leigh Marble told me to do but Reasons still freezes at splash screen.
here is my setup: Mac 9600/G4-450/640MB RAM (MacOs 9.1), ProTools 5.1.3 (d24), Reason 2, reFuse demo.
I tried to rewire Reason with Cubase and it works just fine.
maybe some extension could be the culprit?

please help me, I'm tired of trial&error

thanx
zeze