My specs: 3,2 Ghz Intel P4E (water cooled) 2 Gb PC3200 ram 256 Mb GF6800gs graphic card (water cooled) 80 Gb WD Raptor 10000 rpm HD WinXP SP2 The shimmering appeared on grass and parking lots after landing on a KBOS-TNCM flight with Pmdg 747. The day before on a flight KMIA-TNCM with the same aircra...

I got the shimmering as well. No idea what could cause that.