[xcrysden] MAC OSX start up problem

[Martin Gmitra]

Hi,
I have installed xcryden on mac osx running x11 server. I got the
following message:

Running on platform: macosx
Executing: /Users/xxx/bin/XCrySDen-1.4.1bin/bin/ftnunit

*** the hardware supports the stereo ***

Error in startup script: Togl: couldn't get visual
    while executing
"togl .mesa  -width          400  -height         400  -ident
.mesa  -rgba           true   -redsize        1      -greensize      1
     -blu..."
    (procedure "PlaceGlobWin" line 113)
    invoked from within
"PlaceGlobWin 0 [expr round(650 * $fac1)] [expr round(650 * $fac1)]"
    (procedure "ViewMol" line 26)
    invoked from within
"ViewMol ."
    invoked from within
"if { [llength $argv] > 2 } {
    parseComLinArg [lrange $argv 2 end]
} else {
    ViewMol .
}"
    (file "/Users/xxx/bin/XCrySDen-1.4.1bin/Tcl/xcInit.tcl" line 532)

Any hints how to start the code? Thanks in advance,
Martin