Gravitar pcb problem

Hello, i have this gravitar pcb and cant get it to run right. AVG-chip, roms
and rams are OK. It wont start when its cold but after a couple of minutes
it will display this:

http://www.saunalahti.fi/~mutant/gravitar/

gravitar_game.avi - game mode
gravitar_test.avi - test mode

Usually it will crash in the "GRAVITAR" text or before but sometimes to the
attraction demo game. Watchdog wont reset game. When board is warm it works
worse. I try to use cold spray but no luck..
I have scope and can solder so anyone have a clue where to look? Thanks!

-Jari Viitala 0445646464

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Received on Mon Jul 19 15:52:17 2004