diff --git a/GPy/core/model.py b/GPy/core/model.py
index 4b569f98..09e815ca 100644
--- a/GPy/core/model.py
+++ b/GPy/core/model.py
@@ -29,7 +29,7 @@ class Model(Parameterized):
     def log_likelihood(self):
         raise NotImplementedError, "this needs to be implemented to use the model class"
     def _log_likelihood_gradients(self):
-        return self.gradient
+        return self.gradient.copy()
 
     def optimize_restarts(self, num_restarts=10, robust=False, verbose=True, parallel=False, num_processes=None, **kwargs):
         """
@@ -207,7 +207,7 @@ class Model(Parameterized):
                 raise
             self._fail_count += 1
             obj_f = np.inf
-            obj_grads = np.clip(self._transform_gradients(self.objective_function_gradients()), -1e100, 1e100)
+            obj_grads = np.clip(self._transform_gradients(self.objective_function_gradients()), -1e10, 1e10)
         return obj_f, obj_grads
 
     def optimize(self, optimizer=None, start=None, **kwargs):
diff --git a/GPy/core/parameterization/param.py b/GPy/core/parameterization/param.py
index 78bc4fa2..4b480c55 100644
--- a/GPy/core/parameterization/param.py
+++ b/GPy/core/parameterization/param.py
@@ -273,11 +273,11 @@ class Param(Parameterizable, ObsAr):
         header = header_format.format(x=self.hierarchy_name(), c=__constraints_name__, i=__index_name__, t=__tie_name__, p=__priors_name__)  # nice header for printing
         if not ties: ties = itertools.cycle([''])
         return "\n".join(["""<style type="text/css">
-.tg  {border-collapse:collapse;border-spacing:0;border-color:#999;}
-.tg td{font-family:Arial, sans-serif;font-size:14px;padding:2px 3px;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;border-color:#999;color:#444;background-color:#F7FDFA;}
-.tg th{font-family:Arial, sans-serif;font-size:14px;font-weight:normal;padding:2px 3px;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;border-color:#999;color:#fff;background-color:#26ADE4;}
-.tg .tg-left{font-family:"Courier New", Courier, monospace !important;;text-align:left}
-.tg .tg-right{font-family:"Courier New", Courier, monospace !important;;text-align:right}
+.tg  {font-family:"Courier New", Courier, monospace !important;padding:2px 3px;word-break:normal;border-collapse:collapse;border-spacing:0;border-color:#DCDCDC;margin:0px auto;}
+.tg td{font-weight:bold;color:#444;background-color:#F7FDFA;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;border-color:#DCDCDC;}
+.tg th{font-weight:normal;color:#fff;background-color:#26ADE4;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;border-color:#DCDCDC;}
+.tg .tg-left{text-align:left;}
+.tg .tg-right{text-align:right;}
 </style>"""] + ['<table class="tg">'] + [header] + ["<tr><td class=tg-left>{i}</td><td  class=tg-right>{x}</td><td class=tg-left>{c}</td><td class=tg-left>{p}</td><td class=tg-left>{t}</td></tr>".format(x=x, c=" ".join(map(str, c)), p=" ".join(map(str, p)), t=(t or ''), i=i) for i, x, c, t, p in itertools.izip(indices, vals, constr_matrix, ties, prirs)] + ["</table>"])
 
     def __str__(self, constr_matrix=None, indices=None, prirs=None, ties=None, lc=None, lx=None, li=None, lp=None, lt=None, only_name=False):
diff --git a/GPy/core/parameterization/parameterized.py b/GPy/core/parameterization/parameterized.py
index ef44cfa9..f36cc26d 100644
--- a/GPy/core/parameterization/parameterized.py
+++ b/GPy/core/parameterization/parameterized.py
@@ -393,11 +393,11 @@ class Parameterized(Parameterizable):
 </tr>""".format(name=name)
             to_print.insert(0, header)
         style = """<style type="text/css">
-.tg  {border-collapse:collapse;border-spacing:0;border-color:#999;}
-.tg td{font-family:Arial, sans-serif;font-size:14px;padding:2px 3px;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;border-color:#999;color:#444;background-color:#F7FDFA;}
-.tg th{font-family:Arial, sans-serif;font-size:14px;font-weight:normal;padding:2px 3px;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;border-color:#999;color:#fff;background-color:#26ADE4;}
-.tg .tg-left{font-family:"Courier New", Courier, monospace !important;;text-align:left}
-.tg .tg-right{font-family:"Courier New", Courier, monospace !important;;text-align:right}
+.tg  {font-family:"Courier New", Courier, monospace !important;padding:2px 3px;word-break:normal;border-collapse:collapse;border-spacing:0;border-color:#DCDCDC;margin:0px auto;}
+.tg td{font-weight:bold;color:#444;background-color:#F7FDFA;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;border-color:#DCDCDC;}
+.tg th{font-weight:normal;color:#fff;background-color:#26ADE4;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;border-color:#DCDCDC;}
+.tg .tg-left{text-align:left;}
+.tg .tg-right{text-align:right;}
 </style>"""
         return style + '\n' + '<table class="tg">' + '\n'.format(sep).join(to_print) + '\n</table>'