Thanks for your replies.. all good advice.. and yes.. 2Gb
I didn't make components or use mirrors on my greenhouses but I've simplified them by making the outside surface light grey as opposed to semi-transparent and removed what was inside the structures. I thought I might aswell make two models instead with one being a model of the whole complex with the orchard and basic greenhouses which I could place into GoogleEarth and then a detailed second one of one of the greenhouses which I could use for a walkthrough presentation.

I thought it would be the trees with all the leaves and stuff so I thought I'd use a 2d face-me tree instead. I downloaded one and turned it into a component and told it to face me etc. The problem is that it pivots around the corner of the 2D image as opposed to the middle of the picture where I want it to pivot. Is there any way of changing the pivoting position?

Hello everybody
I'm new here and pretty new with SketchUp as well. I'm coming across some difficulties in a model that I have been working on and I hope that there is a solution other than the model being too big or detailed. I'm basically making a model of a farm with greenhouses and an orchard. I've modeled the greenhouses myself and copied them eight times after which I downloaded one of the trees from the SketchUp download page and made an orchard of lets say almost 100 trees. Then I plunked a building from the 3D Warehouse into the model and that's it.. The model is now so slow that it will barely open without crashing (and not even allowing me to move around the model if it doesn't crash).

Is that it? Have I reached some sort of size limit of what a SketchUp model can be? The file size is 7,510 Kb.
I've got 2Mb Ram and a CPU that is over 3.0 (should be fine right?)

Please tell me I'm ignorant about something and that I forgot to flip a switch somewhere. Or is it that I should be working with much less detailed models?

Yours truly,
Frustrated Me

Thanks a lot Gaieus..
I found the options menu on the importing prompt and switched it over to mm (it was in feet lol)..

And thanks to Kenny too..
I figured out how to do it your way as well and it is a really handy tool. Still learning..

%(#0080FF)[Hello everybody..

I don't know if I'm doing something wrong but when I import dwg. files made in Adobe Illustrator (and exported as such) into SketchUp, they do not open up with the correct dimensions. The shapes are correct and everything is fine except for the scale which comes out so much larger than it is supposed to be.

How do I get the file to open up with the scale correct as well?]