Yesterday, I have tried opera 7.30 on my friend's newly bought SL-7500C, it run quickly and if I suspend and resume, it won't cause any problem. The only difference is that it is in the machine's flash while mine is on microdrive or SD, which is considered to be external stuff. I believe this is the source of the unknown problem.
Any one knows how to solve the problem? Will it be cured by enabling the fast load? If I do something before suspend and after resume, it would cure too, but don't know how much work is needed.
Now I closed opera before suspend and re-opened it after resume.
Meanie: I have solved the netfront's problem. It will search for some fonts, if I named the font alphabetically before the helve*, then it will use it, and it will display Chinese. But it cannot handle all my interested sites correctly.