I guess it is a common issue. I have the same problem with java opera mini. My phones are lava spark 266 and videocon qruz2 v1575.
Reporting a bug may help.
I would have figured Opera Mini 8 would have been announced and out by now, but it's looking like if such a version happens, it'll be early 2014 at best due to the looming holidays toward the end of the month. 😞