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Contrails lost !?

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EHM-0541 Kjell:
Hiyah all.
Recently upgraded my graphic-card from gforce fx 5600 to ATI Radeon 9600 XT with great improvents exept for the  matter that I don`t have the contrails-effect above fl 270 anymore.  Graphic-bars are at almost full.  Had less eye-candy added to earlier card, but yet had contrails visible.
Any clues what`s wrong?  Could it be my new card dosn`t support that effect???  
DirectX 9b installed...but not yet the very latest drivers for the ATI-card...could that be the reason?  Thou card-drivers are almost the latest.

EHM-0005 Maarten:
Try to set the weather totally different. Also, climb to a higher altitude to see if they appear there.

A lot of people say that contrails appear above FL270, but it all depends on the weather conditions. A 'good' mixture between temperature, dewpoint and EGT cause contrails. (contrails are actually just clouds)

EHM-0541 Kjell:
Hi Maarten.....was at fl 320 earlier tonite in a  b747.  Saw lotsa other planes at my altitude....with niiice contrails...but not any from my aircraft.  Cloudy weather.   Donno what problem is, but will try diff settings.

EHM-0962 Zhen Yi:
Contrails appear at FL300 in clear weather, try that to see if it works for you

EHM-1358 Tim:
You might have to re-install the contrial fx files as the may be corrupt.

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