I'd suggest using rgba to define your background. This will give a background which is transparent while keeping your text solid. This post on 24ways should be able to instruct you on how to do this.
That's an odd one. Usually macs just 'plug and play' most of the devices, and it shouldn't have any issues with a mouse.
I'd first check to see if it works with your Vista laptop, and if it doesn't it's a hardware issue. If not, it may be OS related. Try repairing permissions (in Applications->Utilities->Disk Utility) on your drive as that solves most problems.
I'm sorry to hear that you're having troubles with your new mac. Hopefully this'll help!
It's always been a little complicated. From what I've heard, it's due to performance and crashing issues. However, it also seems that Apple just don't like Adobe and they want to keep control to themselves.
