Ubuntu 2.6.31-19-generic monitor change

[lazer1]

hi,

my widescreen monitor is malfunctioning, 

as a result I have to use an ancient 1024 x 768 monitor (Philips 150S)


I use Ubuntu 2.6.31-19-generic

unfortunately Ubuntu doesnt detect the  monitor change and the monitor

cannot display anything.


and there is no safe graphics boot option for Ubuntu 2.6.31-19-generic


How can I boot with safe graphics?


I tried the 64 bit 9.10 install disk but it does not have any 

update option, merely full install options. ie I can boot that with

safe graphics but it doesnt help with the existing install, it doesnt

even tell me which Linux is on which partition as I have about 8 Linuxes

installed on the machine.


if I use 2.6.31-19-generic (recovery mode) that functions but I am stuck

with text graphics, and no clue given as to how to get proper graphics.


thanks for any help