I am using a PPC as the master so I know I'm not 100% on the support grid but I thought I'd point out that in the current build of VEP(4.1 8008) and the prevoius build, there is a problem where Stylus RMX and other loop/sync based V'Is are not syncing correctly. Not only when auditioning loops but also when triggering synth loops.
This is intermittent. It happens about 80% of the time. It is always fixed by disconnecting the slave and re starting VEP. Then everything is fine.
Happens to me every day and has done so for the last 6 months. Sorry I didn't post earlier.
Perhaps on an Intel machine (Master) this doesn't happen. My slave machine (where VEP resides) is an Intel but the master is a PPC.