DVDx not working...

I'll say all the information, just to make sure. My wii is PAL, originally v3.4 (I just downgraded it to 3.2 a while ago) and I installed DVDx with the normal installation. But whenever I put a DVD in, it won't read them. Can someone please help as soon as possible?

Thanks in advance.

What app are you trying to use to read dvds?

I was using GeeXboX, also, it seems only GeeXboX give me this problem, cause I got MplayerWii and it works fine. So yeah, problem solved, but thanks for a quick responce anyway.