The ground is Grey with no detail! Help!

Several times, when I arrive at my own property, my ground and all of the area around me apears grey with no detail. There will be no grass or bushes anywhere, even on other peoples property. If I teleport somewhere else, their land loads fine. To solve this, I've quit second life, trashed my cache, and re-started, but this doesn't always work. Sometimes, I have to do this more than once.
I'm running a Macbook Pro with a Intel Duo 2 Core 233mhz with 2 gig of ram. I also have a verified 6 meg download broadband connection. I should have enough power to run this application, so I must have something set wrong. I'm also running Second life on a 20" Apple Cinema Display, connected to my Macbook. I've heard about some problems with dual monitor on other computers.

Thanks for any help!
Hylee Bekkers

Under Prefs, in one of the Graphics tabs is a setting for level of detail for the ground. 'HIGH" detail should chase away the gray.

I don't know how your mac reacts to driving 2 monitors. I'd suggest you 'MIRROR' while running SL, however.

If possible, disable the laptop's screen completely. (sorry, I don't know HOW to do this, or whether its even possible on a macbook. ) My crappy PC laptop from work does this, so I *assume* the mac has been able to do it for 15 years.

if you have a monitor and USB keyboard plugged into your Macbook, it should run with the screen shut using the external monitor as a single monitor.

I have read there are problems running SL on a secondary monitor... you could keep using the laptop screen to, but make the external monitor with SL on it the primary monitor. In display prefs where you set up wether the monitors or mirrored or where they are in relation to each other, you can grab the white title bar and put it on any monitor you'd like, and it switches that to the primary.