ok. i tried the mpx220 of my girlfriend. it runs... she has 1.35(O2) , but it was a bit slow.  if i would overclock it i would be killed ... so can i get it smooth with an orverclocked  mpx220 ? cause ill only change rom version if its worth it.

EDIT: ^^
i did a hard reset and the emulator works.
what is the best sound setting for mpx220?
and is it right that only the only right processor speed is in tcpmp? how much have you overclocked? (enough questions )

man thats really good. at least i know that its another problem than the phone hardware .
have you updatet your phone rom? (to 1.47 or 1.49 or another version?? )
what get file you use? and do you have a storage card?

my problem is:
when i open pocketsnes everything is ok. but the i choose File>open>any rom and then the rom opens but only a black screen... if i enable "show framerate" i can see that it changes a bit. but thats all i see...

i hope you can help me a bit.

anyone here, who can run roms with a mpx220 ?? 
please tell!

You have to install it on a WM5.0 and QVGA (240*320pix)... cause it's a PPC app so a non QVGA won't do it!

Settings/phone settings/Device name

Change the name of the device and plug it back in. Set up a new partnership with the settings you require.

not sure what you mean about the mobile device bit being grey - i guess that is because no device is connected.
why can you not just select file > delete partnership?

Because you hard reset it, it is now a "different" phone for Activesync.
Disconnect the phone, open Activesync, select Delete Partnership. Once the partnership is deleted reboot PC (just to be sure) and then reconnect the phone. Read the resulting dialog boxes carefully and you should be able to work out what to do!