CP2start problem

I installed CellProfiler for Windows Vista (32) some days ago and it worked alright. I could create pipelines and got output.
I installed CellProfiler Analysed this morning, and after I could not open CellProfiler again. The only thing I get is this message (attachement).
I uninstalled/installed CellProfiler and CellProfiler Analysed again, and that does not change it message.
Thanks for your help,

Hi Tobi,

We’re not sure what’s causing the problem, but we suspect it may be a preferences issue which might be solved by following the instructions here (CellProfiler 2.0 FAQ). However, rather than modifying the values within CellProfilerLocal.cfg entry as in the FAQ, you will want to delete the entire key by pressing Delete and then restarting CellProfiler.