Elaboration error in AMS simulator

 Hi, 

   I am a newbie with AMS and am using IC-5.1.41.USR5 to run a mixed signal simulation with Verilog AMS, vhdl and schematic components. I run the simulation from the configuration  -> schematic (open) -> Analog Environment. Under setup I choose the ams simulator and setup the correct model files. I checked the netlisting options and saw that the cell based netlister is being used. However, netlisting goes through without any errors. Elaboration  produces the following error:

 *F,DLPAKO (No HDL source,0|0): Unable to open packed library for functional (Permission denied).
------
A packed library was found in initialization. However,
ncelab failed to open it. This may be caused by permissions
problems or by interference from another process or user.

 This is the complete error shown by NC-Browse. I am unable to figure out which library is being referred to here. Any tips in tracing this back would help.

 Thanks.

Kasyab