Solved.
I am stupido.
When getting in troubles with any EMU - FIRST LOOK FOR GOOD and 100% clean ROMs.
Just downloaded same SNES roms from other sourse - anything is FINE and workin now.
Again... stupido lost his rev.255 (but nobody can say it is "better" or not to rev222.. So nevermind
Bad news.. I downgraded to 1.1.0 rev.222
Same problem:
pocketsnes_fast.gpe - random color lines on screen
pocketsnes.gpe - fps only counter in the screen corner (wiz is jammed - can not go out by [vol+vol] - reboot only can help)
Exact same for my new WIZ (1.1.0 rev.255, shipped on 6 Jan 2010)- no POCKETSNES action when starting Roms.
Tried several SD cards (both SDHC and SD), re-formatting, re-installing Pocketsnes, various Pocketsnes folder locations etc.
Please confirm, if other users of rev.255 have same trouble...