when i try to install a plug in i receive this message
Installing Plugin: Events Calendar 6.7.8
Downloading install package from http://downloads.wordpress.org/plugin/events-calendar.6.7.8.zip.
Download failed. Could not create Temporary file
when i try to upgrade my blog or another plug in i get this message
Upgrade WordPress
Downloading update from http://wordpress.org/wordpress-3.0.1.zip.
Download failed.: Could not create Temporary file
Installation Failed
how do i get plug ins to install and how do i upgrade my blog? any help would be appreciated!