LG VX-8100

Hi. I just got my awesome new 8100 and am very excited about this phone's potential. Thanks to so many of you for all the advice and help so far. I have bitpim up and running and am able to import ringtones and my contacts, but for some reason, it only lets me put one pic in for wallpaper at a time. If i put in another pic, it erases the previous pic.

Any advice? I must be overlooking something very obvious....

Thanks!