Resolution Problems

[Jeffrey Tooker]

Hello:

I am having resolution problems.  I have been searching online for a 
solution but I have found none that work for me.  System info:
Dell    1.7M CPU
OS       Ubuntu 7.10
Dual Boot    XP/Ubuntu each on separate drive
Monitor    Dell    E772C
Graphics Card   Intel 845
Driver   VESA   -generic VESA compliant card
I am marginal at CLI.

Problem started last week.  System kept reverting to default 
resolution.  I find default resolution very hard to read over time.  I 
found  and went through the resolution edit.  System came up and said 
the monitor was running on minimum resolution.  I tried several times to 
get the system back up and was only able to get it back up by accepting 
the minimum (640 X 480) resolution.  It appears to be locked in now as I 
can not change it from the screen resolution app.  640 X 480 is the only 
choice. While in this resolution I ran into several problems with being 
able to see the bottom of some windows on the screen.  This morning the 
top panel ended up on the left hand side.  I tried to get it back to the 
top, but is so compressed I can not get a handle on it.  I believe I 
have to get the resolution problem fixed so I can go onto other 
problems.  I found online Xorg-edit  
"http://linuxappfinder.com/package/xorg-edit" and downloaded it to 
"Applications", however I can not open it because the top panel is on 
the left hand side and so compressed that Applications will  not open. 

All help greatly appreciated.

Jeffrey Tooker