I bought my first Mac last week, with the intention of learning Xcode and SDK, and eventually start writing applications for iphone. For the past 1 week, i have faced a lot of problems. First, i couldnt download the iphone SDK 3.0, the website keep asking me to log in (i have signed up the $99 developer program), only after trying for many times then i managed to download the SDK file (it was quite tricky though, you cant jus click on the link, you have to right click then open the link in new tab, very weird..). Then i thought the toughest part is finally over, yet when i clicked on the SDK, my Mac showed error message, "cannot mount, file not recognized". I tried to contact Apple and the answer given was their link was fine and they suggest i download again (btw, I am from Singapore), so i tried for the 4th time, ie, to download the SDK again. A screenshot of the error message has been emailed to Apple just now and i hope they can solve my problem, while i try to download for the 5th time, sigh... For the Xcode, i created some basic programs, very basic ones, yet when i build and run the program, only the Windows showed up, a "clean" window, without all the buttons / labels / hello world that i have created, what the hell is going on? I am quite upset with all these, and it seems like Windows is a better choice for me, at least i can achieve something, and not totally lost in this wild jungle of Xcode and SDK? Anyone care to advise what could be the source of the problems? Thanks.