problem with graphic monitor

[Michele Carta]

 Hello,
 
I've a problem in starting graphic monitors with grass5beta5 on a RedHat
6.1 Linux distribution.
Running d.mon from the command line the monitor, say x0, gets opened
but  no graphic object can be drawn upon it by d.rast or d.vect.
Moreover, trying to start grass in graphical mode with tcltkgrass
results in the following error messages:

CAN NOT ALLOCATE ANY READ-WRITE COLOR CELLS

WARNING: ERROR IN TCL SCRIPT
CANNOT ALLOCATE COLORMAP ENTRY FOR "CYAN3"
CANNOT ALLOCATE COLORMAP ENTRY FOR "GRAY90"
CANNOT ALLOCATE COLORMAP ENTRY FOR "GRAY30"

Thanks in advance for any suggestion,

Michele

_______________________________________
Michele Carta dottore forestale
Via D. Compagni, 19 - 36015 Schio (Italy)
tel/fax +39 0445 524655, cell. +39 0335 6227116
e-mail mcarta at mbox.avnet.it