Hi, I bougth recently a new PMDG. I studied the manuals carefully and I succeded in completing all the procedurs requested. I have also filled the FMC with all informations required in order to start a flight. When I was finally ready and I closed the FMC with all the datas, a surprise has arrived. The frame rate the I first blocked at 20, surprisingly sinked to 4, making the bird praticly unusable. This happened with no traffic and with default sceneries. In the past I upgradet the ram to 1 GB and I also changed the grafic card with a new Radeon 9500 with 250 mb. It is very strange that my PC doens't support the PMDG. Should I pay for a new PC only to the pourpose to play with the PMDG? I don't think so.Is there somebody who could help me?Bye Algeggi

Hello Algeggi,Are you running any memory managers in the background?Memory managers have been known to cause issues such as you describe.Please advise.All the best,Bryan

Sorry, I don't know what is a memory manager. Anyway when I use the "zoomed panel" button and immidiately I swich to main panel the problem disappear. But onlu when I use the afordaid procedure. If I for accident chage the wieus, the frame rate drop immediately. I have to repeat the procedure with zoomed panel button.Bye Algeggi

Hello Algeggi,A memory manager is simply a utility that that tries to manage your memory better in the hopes of achieving better performance. Some of them can cause frame rate loss and stuttering when running FS2Crew.I can't explain the zoom panel phenomenon you're describing.Please email me and I'll try to assist you.Cheers,Bryan