Install crashes (and automatic bug report too...)

Binary package hint: ubiquity

My PC has 1 HD, with 3 partitions:
1. Win98 FAT32
2. Win2000 NTFS
3. Data FAT32
So Win98 is the boot, but I always run win2000.
I tried getting Kubuntu (6.06.1) Install to delete win98 and use the space (2,8GB), but I got strange messages... some of them described in other bug reports.
So I deleted everything but the root directory on Win98, and resized it to 50 MB with Partition Magic 8.0.

(Note that in the following I have translated some messages from danish to english.)
Now I ran Install again, and in Step 5 of 6 I chose "Use the largest block of free space". I press Continue and get a small window: "Error: Could not partition the chosen disk". I press OK, and Install goes to step 6 of 6. I read the summary and press Install.
I little window tells about the process, but stops at: "Installer - Finding filesystems - 14%" And there is no activity for several minutes. I can only close the window with the X in upper right corner.
Now there is only the Install window. I press Cancel (the cursor is a circle with dots, probably indicating that "it is working" although nothing is happening.)
"Do you really want to cancel?" Yes.
An "Installer crashed"-window appears for 0.5 seconds, and both windows disappear. (When I got that window in an earlier attempt to install, it asked me to report the bug, which I did.)

I have done the above twice, and both times I looked in the log files while the window said "Installer - Finding filesystems - 14%".
The following is parts of the contents, the first time:

System log: At the end of the file!:
(The second time it was very similar)
---------------------------------------
14-10-2006 19:31:35 ubuntu kbd-chooser[6952] INFO: keymap_ask: default map: dk-latin1

14-10-2006 19:31:35 ubuntu kbd-chooser[6952] INFO: keymap_ask: trans: dk-latin1

14-10-2006 19:32:08 ubuntu kernel [17179946.468000] NTFS driver 2.1.25 [Flags: R/O MODULE].

14-10-2006 19:32:09 ubuntu kernel [17179946.936000] JFS: nTxBlock = 2001, nTxLock = 16015

14-10-2006 19:32:10 ubuntu kernel [17179947.912000] SGI XFS Quota Management subsystem

14-10-2006 19:32:10 ubuntu kernel [17179947.912000] SGI XFS with ACLs, security attributes, realtime, large block numbers, no debug enabled

14-10-2006 19:32:11 ubuntu kernel [17179949.112000] cdrom: open failed.

14-10-2006 19:32:11 ubuntu kernel [17179949.124000] cdrom: open failed.

---------------------------------------

X.org log: Near the start of the file:
(The second time these errors where near the end of the file, seperated by a few other lines.)
---------------------------------------
 default setting SIS(0): Backing store disabled

 default setting SIS(0): Silken mouse enabled

 default setting RandR enabled

 error xf86OpenSerial: Cannot open device /dev/wacom

 error xf86OpenSerial: Cannot open device /dev/wacom

 error xf86OpenSerial: Cannot open device /dev/wacom

 error xf86OpenSerial: Cannot open device /dev/wacom

 error xf86OpenSerial: Cannot open device /dev/wacom

 error xf86OpenSerial: Cannot open device /dev/wacom

 from command Line using VT number 7

 from config file |-->Screen "Default Screen" (0)

 from config file | |-->Monitor "CPD-200EST"

 from config file | |-->Device "Silicon Integrated Systems (SiS) 300/305 PCI/AGP VGA Display Adapter"

 from config file |-->Input Device "Generic Keyboard"

 from config file |-->Input Device "Configured Mouse"

---------------------------------------
And at the end:
---------------------------------------
 probed SIS(0): Using MMX method for aligned data transfers to video RAM

 probed SIS(0): Using MMX method for unaligned data transfers to video RAM

 warning The directory "/usr/share/X11/fonts/cyrillic" does not exist.

---------------------------------------

Kernel log: Seems to be empty.

Boot log:
Loading boot log: File does not exist - KsystemLog - The file '/var/log/boot.log' does not exist.