I have ztoggle used for multitasking to my iPhone 3G as 4.1. When I upgraded it to 4.2.1 the whole thing was functioning very well that includes multitasking also. I attempted to disable every spotlight options and performed a hard reset. After this also, multitasking is not working correctly. All the applications are getting opened and closed appropriately. If I leave by making use of home button and open them then an icon they change just well but if I attempt to change using the multitask tray then the iPhone gets hanged.
The only Cydia apps which I have installed are:
-Installous + AppSync 4.2
-OpenSSH
-zToggle
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