hmm...
So I put the new OS on last night, 1.53c, had 1.53b prior to that.
Anyway upgraded just as I thought should not that I had experienced any issues with 1.53B.
Well all was fine and then it started doing something perculiar with the 1st beat of the bar if certain other machines triggered at the same point, the same group of triggers on other beats behaved normally but the first beat seemed to cause it to "fart"... Not too sure what the culprit is yet, as I also did an empty reset and cleared all the samples out and replaced them with a few new ones at the same time as I did the OS upgrade...
So my guess is it could be any manner of dodgy bits of data... Should get time to track it down tonight though, may well be just my machine but thought I'd make Ignatius feel a bit better about the bizarre goings on of his baby.
On that note i'm pretty sure all of my gear has had a rather vicous attack of the loony tunes at one point or another.