When I used PMDG 747-400 recently, I got a problem. Once I switch to the FS window, the whole FS menu will have gone, but the PMDG works fine at that time.If I use "ALT" button to recall it, the FS will automatically shut down! (If I don't, it'll be OK!)It took place about an hour after I open FS, why?using FS9.1, Windows XP, P4 2.66G, RAM 1G, NVIDIA N6200

Same exact thing happens to me!

Gentlmen,This phenominum has been reported by several users running add on camera software such as walk and follow and some other add ons. It is caused by some type of interference between these add ons and the PMDG software and the only known work around that I am aware of is to uninstall the conflicting software.RegardsPaul Gollnick :-cool Technical Operations/Customer Operational SupportPrecision Manuals Development Groupwww.precisionmanuals.comhttp://www.precisionmanuals.com/priv/img/forum/sig_pmdg.jpg

But I didn't install any softwares for PMDG except for the Add-On Liveries on PMDG website. It's so weird!I'll try reinstalling PMDG again and see if the problem is still there or not.