BP Sliding Login Panel causing white screen in BP-Daily

Hi there,
I'm using BP Daily Theme (3.4), with bp (version 1.2.5.2) enabled.
Whenever I try to network activate the plugin, I get a blank white screen. Are there any known conflicts?

Is there a standard checklist to solve for a white screen?

Thanks for your help - I'd really like to use this plugin if I can!

Or...does anyone have an recommendations for similar plugins?