At almost every airport the lines on the tarmac and sometimes the tarmac itself is just flickering. This happened after i downloaded the acceleration pack, FSUIPC, the updated C++ software from microsoft and MD 81/82 jetliner. I think it may have something to do with DX10 maybe I installed that with that stuff accidentally or it came with that stuff in the install. Anyway I don't know how to disable DX10. If it makes a difference I have 3 C++ software 2008 that are 1.70 MB of the 9.0.21022 version which I think is most recent and one 788KB and one 600KB for version 9.0.30729.6161 version and one 300KB of the 2005 one version 8.0.61001. Please help me it's driving me nuts!