On Jan 31, 2007, at 2:32 PM, ara.t.howard / noaa.gov wrote: > On Thu, 1 Feb 2007, James Edward Gray II wrote: >> >> Thank to all for helping me to understand this issue. >> > > great - that make one of us! ;-) I spent a bit of time looking at the code in io.c. This file has changed radically from the 1.8 branch to the 1.9 (trunk) branch. But... On my platform (Darwin 8.8.0 Power Macintosh): 1.9 from sources works 1.8 (head) from source works 1.8.5 from darwin ports broken 1.8.3 from source works So perhaps there is something to Ara's suggestion that the packaged version of ruby for Mac OS X is broken. I don't have access to linux. I'm rebuilding 1.8.5 from source now... Gary Wright