Trouble with Opening CS5.5 docs

Hi,

I've been working with ID forever, and for the first time I'm having difficulties opening CS5.5 docs on a brand new iMac runinng OS X 10.8.3.

It seems that when it does it's "checking" (for errors, missing fonts and links etc.) it keeps beachbaling. Then it looks like it OK, then it beachballs again. and again. and again.

Once (after 4-5 minutes [!] per file) the file actually opens, everything is quick and smooth.

Anybody have any ideas? It really bums out our workflow.

Thanks,

Dov