formatting partitions

[dr_tzsygatz]

Hi,

I installed Debian Sarge. In the configuration dialog, i was asked to define the resolution. I mistakely chose 640*480 which sucks. I reinstalled Debian but I was not anymore asked about the resolution.then I reinstalled the system a couple of times again but i was never asked about the resolution again, but it was preset as 640*480.

This means Debian somehow remembers settings from the last installation(?!) even i chose to delete the linux partitions in the installer. So i guess the partitions are not deleted in reality.

How can I really format the partitions in a way that the installer shows the resolution dialog again, when installing?

Thanks

[dr_tzsygatz]

I want to emphasize that i cannot format the whole hard drive since i have windows xp on a partition and im not gonna backup 60 gigs...

[falko]

Have a look at this tutorial: http://www.howtoforge.com/windows_linux_dual_boot