QUOTE(joepsplle @ Nov 14 2007, 04:34 PM)

Push the Home button to access the VSH Menu while in the XMB and go to UMD ISO Mode and select NP2966, check if those games in your 4 gig card works. It not try set the PSP CPU speed to 333Mhz or maybe reformat your 4G memory stick. Of course backup your files before doing the formating.
thanks for the reply i will give it a go