Hi, I just installed RC4 after being away from flight sim community for quite awhile. Since Ive got a pretty descent system to run fsx now I thought Id have no issues.. Well Fsx runs very smooth for me but when i start RC I get very slow response times, For example if im told to contact tower I have to wait close to a minute for it to show up as an option for me. Same goes for every command.. I am using pmdg 747-8, activesky 2012, I have latest registered version of FSUIPC. My system specs are: windows 7 64bit, 8gb of ddr3 ram, i5 2500k at 4.8ghz, Flight sim is installed on a seperate 1gb WD black hard drive along with all the addons. Thanks for any help as I I am unable to use Radar Contact until this issue is resolved.