For reasons unknown to me, my user seems to have forgotten aliases in .bashrc! I find that I have to source the .bashrc use the aliases. This is rather inconvenient as I have quite a few aliases that I use all of the time. Does anyone haw any idea as to what might be going on here? Thanks in advance. -- Stephen P. Molnar, Ph.D. www.molecular-modeling.net 614.312.7528 (c) Skype: smolnar1