OK awesome. I'll do that and let you know if it fixes the issue. I won't be able to install the update until next week though.
Just for reference, the link for the patch is here:
http://www-03.ibm.com/systems/power/software/i/access/windows_sp.html
And then SI42423 is what you want if you're updating version 6.1. They also have patches for 5.3/4. I might do that as well just to cover all bases.