This is a somewhat complicated problem so please bear with me.I have consulted, through the forums, with John Dekker from Radar Contact and Peter Dowson from FSUIPC. Both have provided as much help as they can and now we are all stymied.I am running FSX with SP1 installed and PMDG 747-400, FSCrew, Radar Contact and FSMeteo. That's all... no other addon aircraft, panels or scenery.The problem now is that FSX will not open for me. I get the splash screen and the "loading scenery files" and "creating database" notifications and then it just sits there. Eventually displaying "not responding".Pete Dowson from FSUIPC seems to think that it is somehow related to the SimConnect foldersfiles in my c:windowswinsxs folder. He thinks that by deleting these files and using the FSX installation disk "repair" mode that they will be replaced with the correct files. The problem is that I cannot delete these files. I am using Vista and have tried every trick in the book to get around their roadblocks. I have opened explorer in "administrator" mode. I have tried changing the attributes, etc. but to no avail.I am now sitting here with hundreds of dollars worth of FS hardware and software and can't use anything.Does anyone have any suggestions? I would really appreciate any help you could give.

If I'm correct, deleting you logbook did help.Daniel

Yep... everything is back to normal.