2 Master Slides?

I'm trying to make a Powerpoint Preseantation where the first 2 slides introduce the name of the company and what it stands for. I need these to be blank but the slides that follow should have a Master Slide cascade through. I have the presentation with Master Slide set up but can't seem to insert blank slides at the beginning. Can you help?

[tajsimmons]

If you want a slide to ignore any graphics from the master slide, then do this...

format menu > background > tick "omit backgrounds graphics from master"

If you want to simulate multiple masters, then see here
http://www.echosvoice.com/multipletemplates.htm

Cheers