Unity Spazzing out

Hi! I just updated my old mac os x 10.4 to 10.5.

Unity now spazzes out when I run it like this: (upper left)


I went to the website to re-download the free unity but now I can only get unity 3!!! WHY?

Unity 3 is free.

–Eric

But I have a ppc mac!

Unity 3 only supports intel!!!

How do I get Unity 2.x ?

No really how do I get Unity 2. Did they discontinue it?