Elektron Musical Instruments

I am having some problems as I load a sample into my UW(ver1.30).  I am using the current 
version of C6 and it's a 164k aiff. file and I have 59% memory used on my UW.  I have loaded 
samples before without incident, I use a Edirol UM-1X interface.  When I hit "send" the UW 
starts playing the current pattern in a stuttering manner and the sample manager screen sits 
in "waiting" mode.  C6 looks like it is sending the info but my UW just freaks out!  I did do an 
OSX update patch on my mac today, it's the only thing I can think of so far that is different 
since the last time I loaded a sample.  Any help or ideas would be appreciated.  Thanks, -
scott