Multitasking & Text Message Issues on custom iOS 4.2.1

[Alveezy]

ever since i've upgraded through the custom iOS 4.2.1 via Pwnage Tool on my iPhone 3G, i've notice that every time i switch apps through the multitasking app switcher (when you double-press the home button) to switch apps...the springboard crashes. whenever i get a text message while i'm on an app and i try to click the "reply" button...again my springboard crashes. i didn't activate the multitasking & wallpaper through pwnage tool, instead i downloaded the app called "zToggle" to toggle on multitasking & wallpaper. i did the same when i was in iOS 4.1 and i didn't run into these problems. i'm assuming it's the mobilesubstrate, but didn't they update that like awhile ago, to work on iOS 4.2.1? my question is...does anyone else on here happen to have these problems and have solutions to them?

[Simon]

Its a issue with multitasking on a 3G with 4.2.1. There is a thread around here with a fix. Cant remember where though, just try a search.

[Smokin-anger]

hey i getting that problem too wit my messages its crashing my springboard can u help?