m.dem.extract

[FINNEYB at AXE.HUMBOLDT.EDU]

Is there anything inherent in m.dem.extract that would cause the east
border of USGS dem files (30m x 30m grid) to be set to zero.
I have read in five files (5 quads) of dem data at once using m.dem.extract.
Upon display, the elevation data fills the entire quad area except for the
east edge (5 columns worth).  The data is from the island of Oahu.
Any ideas?
 
Thanks
 
Brad Finney
Environmental Engineering, Humboldt State Univ,
Arcata, CA  95521
 
finneyb at axe.humboldt.edu