I have Windows XP SP2 and I run two monitors (1 LCD, 1 CRT) from a single VGA card (not too strong card, ATI RADEON 9600 AGP 128Mb DDR). I am generally running undocked panels on the second screen. I run FS9 in windows mode on the first monitor.I experience anoying short stops in screen refreshing at every 9-12 secs even if the voerall FPS is OK. If I turn off Windows desktop from my second monitor (Diplay Properties/Settings and I removed the Windows desktop spreading to the second monitor [i do not know the exact checkbox title in English as I have Hungarian Windows]) the problem dissapears. It is independent of whet is there on the second monitor. It happens also if the second monitor is empty.Is it simply because of the poor VGA card?Gabor

gabor try this,go to secondary monitor properties, hit the problem tab (i have dutch version so i don't know if this is the same name), and then put the hardware tab, on 3 sliders from the left, so the pointer is on number three.hope it works, it worked for me, and i have ati radeon pro 9800.rick

Huhh, this IS WORKING!!!Thanks very much!Once you are travelling near Budapest ring me for a bottle of Tokaji wine.Gabor

well to be honest i had the same problem like you, but somebody on this forum helped me out also, that's why i like avsim and flightsim so much.have fun.RickPent 4 3.0 1024 ht/offasus p4c800hd 200gb 4 partitionsmaxtor 7200 rpmati 9800pro 256 cat 5.1221"IIyama crt19" relisys crtwin xp sp2 CH yoke + pedals+ 1dell 1hp laptop for asv ivae etc