Saturn Video Problem

When my saturn is loading a game, the screen becomes slightly unstable (ie text becomes 'wavy'). This only happens when the game is actively loading (usually when the laser is seeking), not during game play. What's wrong with it? How can I fix this? I have a PAL Saturn and I'm using a scart lead.

Sounds like a bypass capacitor or two might have gone, and the power fluctuation from the read circuits is messing up your video signal. I'm not familiar enough with Saturn to really know where to check, though.