I'm using the latest version (20040903) and have noticed that automatic redraw does not work propoerly and some artifacts are left. "r" key has to be used. pcb is installed on a Redhat 9 machine.
Other strange things are with elements from the library which have circular outlines (silkscreen layer) when selected do not have their entire circumference highlighted. Also, when selecting some elements, clicking on these elements do not always select them. I think they are selected if I click on some very specific point/area but it's hard to locate these points. Some examples are the radial circular capacitors from geda library and BC547A from transistor library.
So far PCB is pretty much everything I need for my needs, so keep up the great work.