If you're on any previous version - I suggest that you update to the latest multiMAN.
Added: Threaded processing in background for downloading covers (no more GUI interruptions)
Added: XMMB mode will invoke download of missing covers, too
Added: Caching of Retro column
Changed: Non-blockable scanning in XMMB when device is connected/disconnected
Added: Support for Genesis+ GX retro emulator (port by squarepusher2)
Added: Support for FCEUltra (NES/ULTRA) PS3 retro emulator (port by squarepusher2)
Added: Support for VBA PS3 retro emulator (GameBoy/GameBoy Advanced)
Improved: XMMB Photo column display and navigation (no more image buffers release when full - a lot seamless now)
Added: Support for PNG covers for Retro column (408x408 max resolution) (408x180 for best results)
Fixed: Some issues in XMMB mode - all working much more stable now
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