Hi, I finally decided to upgrade my OS to 4.x since more and more apps were becoming unusable on 3.1.3 (which I was very happy with). The upgrade and jailbreak were successful, and I reinstalled all my JB apps with AptBackup. But basically as soon as I finished the process I began having huge problems. First, the system was noticeably sluggish and unresponsive. But more importantly, it was crashing left and right. The springboard would restart in Safe Mode, and I would get the prompt to respring again in normal mode (with the usual caption that Mobile Substrate did not cause the crash). After a little while I started noticing some patterns. EVERY time I view the Spotlight screen, this happened and I had to respring twice to get back on track. It doesn't matter if I type anything, try to swipe to exit, hit "home" to exit, or lock the unit. As soon as the Spotlight screen is in view, the system crashes. I have tried "disabling" Spotlight through the settings (which as far as I can tell, doesn't actually disable it, but just tells it not to index anything), and I have made sure that I am up to date with all my Cydia apps. One thing that may be worth noting is that I downloaded the Disable Multitasking tweak, and am using Backgrounder. I also have Inspell installed, both of which may be attempting (but not succeeding) to override the default Apple features. I have also had similar crashes while working within other apps, or arranging folders with Folder Enhancer installed. But the main thing is that consistent crash when the Spotlight screen is viewed. I have done several searches for keywords, but it doesn't seem that anyone else is having issues with the Spotlight causing a crash. Any suggestions or ideas would be very appreciated. Thanks!