Opera Mini (or Java?) locking up my phone since 3.35 upgrade

[tracerit]

Ever since I upgraded to 3.35, OperaMini would lock up after I use it for a while. I don't believe it to lock up on a certain site because I would be able to just turn the phone off and going back to that site.

When the phone locks up, it wouldn't register any presses in button area (such as the Start Menu, the X), wouldn't register the soft keys or call/end keys. It would turn the backlight on when I touch the screen though. The right side power button would put the phone in standby, but after that I can't press it again to bring the phone back. However the phone would turn back on by itself a few minutes later with the time unchanged in the top right corner.

The only way for me to fix this would be to take the battery out and putting it back in. I've tried reinstalling Opera Mini but that hasn't fixed the problem. Any suggestions?