exported tracks off time

don't know why this is happening but I've exported tracks to reason from the MPC ren before with no problem now all my tracks are slightly off by a couple ticks once imported to reason (since I've upgraded to 1.4) is there something I need to adjust in my MPC software?? please help

Never mind found out that the problem might be that I might not have enough ram to do what I'm trying to do just incase anybody else hits this wall:well I was trying to export 24 separate tracks of a
Whole song from the mpc-renaissance to rework and finish in reason 7when I tried this my whole song would be off and even studder at the beginning so obviously I need more ram in my mac
Only running 4gigs of memory right now in my mac and my work around is to just export the tracks
From each sequence (which is only 8 measures long each and only a total of 4 sequences) and piece it together later in reason at least until I can get more memory well hope this was helpful to somebody out there and if I am completely wrong feel free to correct me.