Spaz is only showing DMs and Replies, nothing from my timeline!
First, make sure you haven't toggled on the view to only see replies and direct messages. Hit the 'Toggle' button at the top of the timeline, or hit CTRL+SHIFT+F (CMD+SHIFT+F on OS X).
If that doesn't fix it, this is usually a problem with the Twitter API. When requesting data from Twitter, Spaz waits 20 seconds for a reply before giving up so if the API is slow, it can appear to miss "regular" timeline entries. This should fix itself – wait for the next update or hit Refresh. If it's still a problem, wait for a while and it should sort itself out..