I am trying to install acceleration pack for FSX, but it says I have to uninstall Sp2. When I try to do that with control panel I get an error stating "A network error occured while attempting to read from file C:\Windows\installer\FSX_SP2_ENU.MSI. Could someone help me with this?:(

You can normally uninstall the SPs with the installer for the SP itself, if you use that, it should give you the option to either install or uninstall. If it screws up and wont let you uninstall, simply install it instead and then uninstall it.Al

Thanks, I will try that!