Hmmm re-installed RC4 from my disk onto a new drive. I have a new install of FSX also. When I make a flight plan in FSX and try to load it into RC4 I get a Runtime error 5Invalid Procedure Call or argument.message. I'm thinking about uninstalling and reinstalling but am not sure. If I do this, will I need a new reg key?TurnipSPECS:VISTA Home Basic 580 WATT Sunbeam PowerCrucial Ballistix 4GB(2 x 2GB) 240-Pin DDR2 SDRAMASUS P5N-E SLI LGA 775 NVIDIA nForce 650i SLI ATX Intel Motherboard Intel Core 2 Duo E6550 Conroe 2.33GHz LGA 775 65W Dual-Core Processor Model BX80557E6550ATI Radeon 3870 512250 GB WD SATA HD 120 GB WD IDE HD[/url]

did you install 4.3?

UGH! I was thinking that 4.3 was on the CD. I looked again and it said Ver 4. I'll get 4.3.