I use multi monitors. But it seems to make everything goes goofy if I try and re-size anything., Like the duplicate trailing panel below. Also the mouse flickers, if you try and re-size the CDU on the other monitor. Can you se the trailing effect? Hmmmmmm Wasn't FS9 so much more stable? I have Nvidea GTX480(none SLI) and i7core. I have been struggling with these types of issues with this machine for months. I have tried everything. Nvidia Inspector, Nhancer, re-installing drivers. Sweeping the drivers off and re-installing.I'm running out of ideas. This problem happens when using PMDG addons, but can't totally be sure it's solely down to this.