ModelSim XE III/Starter 6.0d PROBLEM

Hello all,

I have e problem with modlesim. here the errormessage:

# Reading C:/Modeltech_xe_starter/tcl/vsim/pref.tcl
# do DIDEM_TB.fdo
# ** Warning: (vlib-34) Library already exists at "work".
# Model Technology ModelSim XE III vcom 6.0d Compiler 2005.04 Apr 26 2005
# -- Loading package standard
# -- Loading package std_logic_1164
# -- Compiling package parameter
# Model Technology ModelSim XE III vcom 6.0d Compiler 2005.04 Apr 26 2005
# -- Loading package standard
# -- Loading package std_logic_1164
# -- Compiling entity dpram
# -- Compiling architecture dpram_a of dpram
# ** Error: (vcom-11) Could not find C:\Modeltech_xe_starter\win32xoem/../xilinx/vhdl/xilinxcorelib.blkmemdp_v6_3.
# ** Error: dpram.vhd(7: Cannot find expanded name: xilinxcorelib.blkmemdp_v6_3.
# ** Error: dpram.vhd(79): (vcom-1105) 'xilinxcorelib' is not an entity.
# ** Error: dpram.vhd(131): Error in configuration specification. Expected entity aspect.
# ** Error: dpram.vhd(151): VHDL Compiler exiting
# ** Error: C:/Modeltech_xe_starter/win32xoem/vcom failed.
# Error in macro ./DIDEM_TB.fdo line 6
# C:/Modeltech_xe_starter/win32xoem/vcom failed.
# while executing
# "vcom -explicit -93 "dpram.vhd""

Can anybody helb me?
Thankyou Timo

blitzgeist