Index: library/mongodb/example-nx-bi.tcl
===================================================================
diff -u -N -r04b17cf850af721f6ad1760dece06ef78b11da83 -ra77464d1f7a06117c621560ec519dc4d387ed5df
--- library/mongodb/example-nx-bi.tcl	(.../example-nx-bi.tcl)	(revision 04b17cf850af721f6ad1760dece06ef78b11da83)
+++ library/mongodb/example-nx-bi.tcl	(.../example-nx-bi.tcl)	(revision a77464d1f7a06117c621560ec519dc4d387ed5df)
@@ -35,7 +35,7 @@
 
 # Make sure, we start always from scratch, so remove everything from
 # the collection.
-nx::mongo::db remove tutorial.postings {}
+nx::mongo::db drop collection postings
 
 ######################################################################
 # Create the application classes based on the "Business Insider" data
Index: library/mongodb/example-nx-mongo.tcl
===================================================================
diff -u -N -r5f281c1ff709a771d08362ee9593dcbe76ebbb2b -ra77464d1f7a06117c621560ec519dc4d387ed5df
--- library/mongodb/example-nx-mongo.tcl	(.../example-nx-mongo.tcl)	(revision 5f281c1ff709a771d08362ee9593dcbe76ebbb2b)
+++ library/mongodb/example-nx-mongo.tcl	(.../example-nx-mongo.tcl)	(revision a77464d1f7a06117c621560ec519dc4d387ed5df)
@@ -12,10 +12,13 @@
 ::nx::mongo::db connect -db "tutorial"
 
 # Make sure, we start always from scratch
+
 nx::mongo::db remove tutorial.persons {}
+if {[::mongo::count [::nx::mongo::db eval {set :mongoConn}] tutorial.persons {}] > 0} {
+  # when we create a capped colletion, we have to use "drop collection" to get rid of it.
+  nx::mongo::db drop collection persons
+}
 
-::mongo::run [::nx::mongo::db eval {set :mongoConn}] tutorial {drop string persons}
-
 #
 # Create the application class "Person"
 #
Index: library/mongodb/example-nx-reference-many.tcl
===================================================================
diff -u -N -rc9ef41c49f482a38e89f7cffc54cabf909710425 -ra77464d1f7a06117c621560ec519dc4d387ed5df
--- library/mongodb/example-nx-reference-many.tcl	(.../example-nx-reference-many.tcl)	(revision c9ef41c49f482a38e89f7cffc54cabf909710425)
+++ library/mongodb/example-nx-reference-many.tcl	(.../example-nx-reference-many.tcl)	(revision a77464d1f7a06117c621560ec519dc4d387ed5df)
@@ -11,8 +11,8 @@
 ::nx::mongo::db connect -db "tutorial"
 
 # Make sure, we start always from scratch
-nx::mongo::db remove tutorial.groups {}
-nx::mongo::db remove tutorial.members {}
+nx::mongo::db drop collection groups
+nx::mongo::db drop collection members
 
 ######################################################################
 # The first approach to implement references simply as multivalued
Index: library/mongodb/example-nx-reference-one.tcl
===================================================================
diff -u -N -rc9ef41c49f482a38e89f7cffc54cabf909710425 -ra77464d1f7a06117c621560ec519dc4d387ed5df
--- library/mongodb/example-nx-reference-one.tcl	(.../example-nx-reference-one.tcl)	(revision c9ef41c49f482a38e89f7cffc54cabf909710425)
+++ library/mongodb/example-nx-reference-one.tcl	(.../example-nx-reference-one.tcl)	(revision a77464d1f7a06117c621560ec519dc4d387ed5df)
@@ -12,9 +12,10 @@
 ::nx::mongo::db connect -db "tutorial"
 
 # Make sure, we start always from scratch
-nx::mongo::db remove tutorial.users {}
-nx::mongo::db remove tutorial.posts {}
+nx::mongo::db drop collection users
+nx::mongo::db drop collection posts
 
+
 ######################################################################
 # The first approach to implement references simply as an property.
 # This is just feasible in cases, where the user has just a name and
Index: library/mongodb/nsfmongo.c
===================================================================
diff -u -N -r04b17cf850af721f6ad1760dece06ef78b11da83 -ra77464d1f7a06117c621560ec519dc4d387ed5df
--- library/mongodb/nsfmongo.c	(.../nsfmongo.c)	(revision 04b17cf850af721f6ad1760dece06ef78b11da83)
+++ library/mongodb/nsfmongo.c	(.../nsfmongo.c)	(revision a77464d1f7a06117c621560ec519dc4d387ed5df)
@@ -774,7 +774,7 @@
 */
 static int 
 NsfMongoRemove(Tcl_Interp *interp, mongo *connPtr, CONST char *namespace, Tcl_Obj *conditionObj) {
-  int objc, result;
+  int objc, result, status;
   Tcl_Obj **objv;
   bson query[1];
 
@@ -785,8 +785,10 @@
  
   BsonAppendObjv(interp, query, objc, objv);
   /* for the time being, no write_concern (last arg of mongo_remove()) */
-  mongo_remove(connPtr, namespace, query, NULL);
+  status = mongo_remove(connPtr, namespace, query, NULL);
 
+  Tcl_SetObjResult(interp, Tcl_NewIntObj(status == MONGO_OK));
+
   bson_destroy(query);
   return TCL_OK;
 }
@@ -971,12 +973,12 @@
 static int 
 NsfMongoGridFSRemoveFile(Tcl_Interp *interp, gridfs *gridfsPtr, 
 			CONST char *filename) {
-  int result;
+  int status;
 
   /* the current interfaces does not return a status ! */
-  result = gridfs_remove_filename(gridfsPtr, filename);
+  status = gridfs_remove_filename(gridfsPtr, filename);
 
-  Tcl_SetObjResult(interp, Tcl_NewIntObj(result == MONGO_OK));
+  Tcl_SetObjResult(interp, Tcl_NewIntObj(status == MONGO_OK));
 
   return TCL_OK;
 }
Index: library/mongodb/nx-mongo.tcl
===================================================================
diff -u -N -r5f281c1ff709a771d08362ee9593dcbe76ebbb2b -ra77464d1f7a06117c621560ec519dc4d387ed5df
--- library/mongodb/nx-mongo.tcl	(.../nx-mongo.tcl)	(revision 5f281c1ff709a771d08362ee9593dcbe76ebbb2b)
+++ library/mongodb/nx-mongo.tcl	(.../nx-mongo.tcl)	(revision a77464d1f7a06117c621560ec519dc4d387ed5df)
@@ -5,7 +5,7 @@
 #
 package require nx
 package require nsf::mongo
-package provide nx::mongo 0.2
+package provide nx::mongo 0.3
 
 # todo: how to handle multiple connections; currently we have a single, global connection
 # todo: all references are currently auto-fetched. make this optional
@@ -32,6 +32,7 @@
     :public object method remove  {args} {::mongo::remove ${:mongoConn} {*}$args}
     :public object method query   {args} {::mongo::query  ${:mongoConn} {*}$args}
     :public object method update  {args} {::mongo::update ${:mongoConn} {*}$args}
+    :public object method "drop collection" {name} {::mongo::run ${:mongoConn} ${:db} [list drop string $name]}
   }
   
   #######################################################################