Hi,
I found another problem in the current 1.5 rc regarding to the "preceding" and "next" month names of the monthly calendar. In my german language system the month names contain wrong characters where there are german umlauts. I fixed this with the following change within "datamodel.php" under "libraries" in the com_jevents directory.
In "datamodel.php" within the function "getAdjacentMonth()" near line 1077
replace
$monthResult['name'] = strftime("%B",$d1);
by
$monthResult['name'] = JEVHelper::getMonthName($month);
so that the month names get really localized by transforming them through the language file.
Clemens