Perhaps post some pictures of your settings, so we can see how you are currently configured. And yes, that white haze could be related to light, as projectors don't really hold up well contrast wise when exposed to ambient light. Here's a link to the Sony site about the 1.1 update:
https://www.sony.com/electronics/support/vpl-series-vplvw-series/vpl-vw500es/downloads/W0010056
https://www.sony.com/electronics/support/vpl-series-vplvw-series/vpl-vw500es/downloads/W0010056