UPDATE
If you are using piwik in a multiple site format- each site must be pulling stats, example if you have like in my case sites 1,2,3,4 and you dont have 2 installed piwikx throws an error. Why Im not sure but its probably worth investigating. I deleted the #2 site where piwikx was not installed yet and all the errors went away.
Funny thing
In the Pages (last month)graph I get
Fatal error: Call to a member function filter() on a non-object in /home/crabkin/public_html/piwik/core/ViewDataTable.php on line 369
and in the Visits Overview i get
Fatal error: Call to a member function getTimezone() on a non-object in /home/crabkin/public_html/piwik/core/Controller.php on line 229
I successfully installed this on two prior sites and followed the same procedure except that in the first site I used a piwik installation just for that site and in the next site I started a multiple site installation. Site 1 works but 3 and 4 give me these errors and site 2 is not yet installed but should not have bearing on the two other sites.
Any ideas? Piwik works fine when i click the show full stats button.
Thanks
Chris