Ignite Pro slows EDIUS start up and crashing

I have ignite 4.1.9221 and EDIUS Workgroup 9.51 and have two problems, which I wondered if anyone else was sufffering from:

  1. With Ignite installed EDIUS takes about 15 seconds longer to get past the splash screen.  You can see the loading bar stop half way.  If I just take the plugins out of the EDIUS plug in folder it starts quicker.  Is there anyway to improve this?  I tried excluding EDIUS and ignite folders from my anti-virus.
  2. I have been getting a lot of crashing - in particular when using the chromakey effect.  If I have a large project (1000 ish clips) with just a few Ignite effects included on some of the timelines on many occassions it will crash when loading the project.  Remove Ignite and the same project loads ok.  I have EDIUS installed on several systems and on some it works some of the time, but on most it will crash.  I did wonder if it was something to do with nVidia drivers but have tried a few - I have generally used the latest.  Has anyone else had this?