I am really mad right now.. because...

I worked for 3 hours on a foresty themed entrance and river/waterfall just for it to crash when I clicked a CS set that I forgot did not work correctly.

^ Ahhh, sorry to hear that, I bet that was really annoying.

Its happened to me before to :T

That's happened to me a lot. Now I save my game before I open a new CS set.

Whenever I install a new cs set I always click on it to check before I build anything that may involve it later on.

^ I save it before I click on a new one, but sometimes I accidentally scroll over one and my game crashes

Yeah. I've done that before. Sometimes I was even foolish enough to open one that I knew didn't work.

It happens with ctr/cfrs too. I accedentally click on the wrong one by mistake.

mesa angry...

I hate that the realistic construction part of the game like in rct1 has been taken away and now in rct3 objects can be placed 'floating' in mid air and coasters can travel through walls etc. scenery mixes with other scenery and objects and to be honest the peep graphics are terrible. The game has gone way to elementary and constructing things are frustrating like getting simple flat surfaces and tunnels that you cant place objects in. I think you should be able to have pre-made rooms where any surface can be changed with objects and styling (haunted house for example). the game totally lacks attention to real theme park detail. The ghost train haunted/scary themes are rubbish and way too big for a clostrophobic ride. Big blackout areas should be readily available for very dark rides with optional lighting and sound effects at different track points etc. Rct3 should have had much bigger expansion packs with much more theme improvements, and also sorted out the stupid billboard problems and made a quick fix. They should continue to bring out theme packs as well to download, even if it costs a few quid. I think you should be able to design a lot more custom shops etc

And the funny thing is, almost all of the things you just mentioned you can do with custom content.