OK, that's kind of hard to do right now becasue I'm at work. I'll see if I can load litestep on my laptop, and let you know exactly what the error messages are I'm getting.

Basically, thoguh, they are stranged error messages. I get quite a few of them before I just have to do a ctl-alt-f1, and re-load simplicity.

I've downloaded a couple of other themses that worked OK, so I think the light xp one may either be an older theme, or non OTS.