UNITY Temporarily crashes when I run my game

I’ve spent a month working on a small game. Over time the amount of assets I’ve been using has grown.

Yesterday I added a high amount of mesh colliders to the main scene, and ever since then the UNITY editor stops responding for around 30 seconds before I can actually test my game. The same thing happens when I exit the game. :frowning:

I’m using a mid-2011 11-inch MacBook Air with 2gb of RAM, a 1.6 GHz Intel Core i5 Processor, an Intel HD 3000 graphics card with 288mb of memory and Mac OS X Lion 10.7.2.

Is this something to do with the amount of objects in my scene or is it some kind of bug in UNITY?

Update: I also experience plug-in failure whenever I try to run the game on my web browser.

I’m going to bump this. I’m still having the same problem.