Upgrade from 9.04 to 9.10 only displays in 800x600 on Intel 82G35 display controller

[Alex Janssen]

"X -configure" produces a xorg.conf file that shows my display 
controller properly, but it runs the display in 800x600.  The only 
options in System->Preferences->Display are 800x600 and 640x480 and it 
does not recognize the monitor, a Viewsonic AW1703wb that should be run 
at 1440x900.  I have tried reinstalling the xserver, but no better.
I can not find any bugs reported spcifically for this issue.
U9.04 had no problems with this board or monitor.
Should I reinstall 9.04 and wait a couple of months or is there a fix? 
I could try a fresh install as /home is on a different partition from /.

Alex
Intel DG35EC motherboard with 3GHz Core 2 Duo, 4 GB RAM, 250 GB HD