Wirelessly posted (Mozilla/4.0 (compatible; MSIE 6.0; Windows CE; IEMobile 8.12; MSIEMobile6.0) Sprint Touch Pro 2)
ok this is what you do, i had the same problems at 1st on mine a few weeks ago. go and download phm regedit, a free registry editor. once you install it do this:
go to HKCU\Software\HTC\TaskManager\ExclusiveList\System and delete "Opera9.exe." this will make opera appear in the task manager so you can completely exit out of it.
in order to disable push internet go to HKLM\Software\HTC\PushInternet\Enable => change to "0"
let me know if you need more help.
i have a list of other hacks too