Ive run into some awesome themes, the problem is, they have huge compatibilty issues. for example, Wyndows depends on QuickLock, Categories, and Springjumps. But SpringJumps will make SpringBoard crash, and enter safe mode. So i cant use Wyndows. Another one is a great and simple HTC Sense theme, but when i enable it and respring nothing happens. Infinboard doesnt work on 4.0 [ yet ], So i cant install AppMan's Zune HD Ultimate theme [ it was one of the 2 themes i always used in iOS 3 ]. Really, its getting annoying. i love iOS 4 so im not downgrading, so what the hell can i do to make these themes work ?