I have just used the instructions on this forum to first root my phone, and then install New 2.2 on to my desire. What a improvement in performance and Shockwave flash works..... But I can't install on to my SD Card at all. If I download a app from the market (or my pc) which is set to install on extrenal storage (SD Card), it downloads and the installation fails. I also can't use APP 2 SD as when I try and copy to memory it fails. So if I then unmount my SD Card, and install the same app, it installs and works fine. So do I need to do something to my SD Card?