Year View shows lot of not existing underscores (Events)

I have the opposite problem: My events are not showing up in year view. I'm running the latest version of the dev release as of April 7 2009, patched to allow for date_timezone error fix (Thread 409476).

Edit:

Correction - events that have already passed are not showing up. ALL days between the next event upcoming and the final event on the calendar are highlighted (see screenshot).

screenshot

I just started having this same issue. I tried to upgrade (Calendar and Date) to the March 25 releases from the December 15 Dev (which had been working fine). It showed no dates on my calendar at all. So I went back to the December 15 release and now no previous dates appera on my calendar, yet every day following today has an underscore.

This is a Calendar issue, not Date.

I had the same problem :
in year view I had all day links underlined as if there were 'entities' on it when there were none.

I had a long look at the code and ended up wondering about this code (in theme.inc) :

// Make sure we only run through this function one time.
if (!empty($view->date_info->calendar_processed)) {
// return;
}

I uncommented the return ; and now the view is working (at least the year view).

has anyone an idea why this line was commented ?