Created attachment 428 [details]
This enables the pdf to be generated correctly

With this patch it should work correctly and produce the pdf file. The @printindex cp command doesn't work for the pdf, it shows no index at the end of the pdf file. Should it be removed?
There is still other non blocking errors for the html generation where the errors are relatively clear:
texi2html --css-include=manual.css manual.texi                                 
*** Duplicate node found: Overview of the model (in ./csma.texi l. 13)         
*** Duplicate node found: Overview of the model (in ./point-to-point.texi l. 13)
** node_next `Overview' for `Top' not found                                     
** `Quick Overview' doesn't appear in menus                                     
** `Random variables' is up for `Quick Overview', but has no menu entry for this node
** `Background' doesn't appear in menus                                              
** `Random variables' is up for `Background', but has no menu entry for this node    
** `Seeding and independent replications' doesn't appear in menus                    
** `Random variables' is up for `Seeding and independent replications', but has no menu entry for this node
** `class RandomVariable' doesn't appear in menus                                                          
** `Random variables' is up for `class RandomVariable', but has no menu entry for this node                
** `Base class public API' doesn't appear in menus                                                         
** `Random variables' is up for `Base class public API', but has no menu entry for this node               
** `Types of RandomVariables' doesn't appear in menus                                                      
** `Random variables' is up for `Types of RandomVariables', but has no menu entry for this node            
** `Semantics of RandomVariable objects' doesn't appear in menus                                           
** `Random variables' is up for `Semantics of RandomVariable objects', but has no menu entry for this node 
** `Using other PRNG' doesn't appear in menus                                                              
** `Random variables' is up for `Using other PRNG', but has no menu entry for this node                    
** `More advanced usage' doesn't appear in menus                                                           
** `Random variables' is up for `More advanced usage', but has no menu entry for this node                 
** `Publishing your results' doesn't appear in menus                                                       
** `Random variables' is up for `Publishing your results', but has no menu entry for this node
.
.
.