weird editing problem

[visitord]

Hello out there! I am an experienced proi user but I aint never experienced anything like this!!!
PROBLEM-In the edit page using the grid set to 115.16bpm...I duplicate the bar once and the duplicated bar is exactly 1 bar in lenth like it should be....Than I duplicate both bars together and the new part is slightly longer in length than 2 bars!!!!!WHYWHYWHY
I have no tempo changes set up
am using a MBOX with a 460mhz G4
other sessions appear to be OK
I can't finish my $#%^@ Song!!!
-thanks to anyone who can help-

[Rail Jon Rogut]

Switch out of BPM mode when duplicating... otherwise you're encountering rounding errors.

Rail