Are u stack when installin Ubuntu Dapper Drake on virtual pc 2004,
Follow this trick..

Create a new virtual machine
1. Start Microsoft Virtual PC 2004.

2. Create a new virtual machine by clicking the New button. Follow the New Virtual Machine Wizard.
2.1. Click Next and Select the Create a virtual machine option. Click Next.
2.2. Fill the Name the virtual machine. For example: Ubuntu. Click Next.
2.3. Select Other, cos there’s no other options, on the Operating System Options. Click Next Again.
2.4. Recommended RAM of 128MB. Select Adjusting the RAM and configure for at least 256MB. Click Next
2.5. Select the virtual disk option. Use A new virtual hard disk. Click Next
2.6. Specify the Virtual Hard Disk Location. Click Next
2.7. Click Finish to create the new virtual machine.

3. Start the virtual machine. The BIOS will boot. If you want to install from the ISO file, click the CD menu and select Capture ISO Image then browse the ubuntu-6.06.iso file.

4. After ubuntu boot screen up, then hit the ESC key, and ENTER when the windows box confirmation show up. (see skrinsut).

5. When boot Prompt show up,
just type install debian-installer/framebuffer=false, hit ENTER and follow the instruction like usually. (see skrinsut).

6. When Finish and restart, en you can get the messy Xwindows environment, hehehe..
Press Crtl+Alt+F1. Login With Your Usernamer and type sudo dpkg-reconfigure xserver-xorg, When Windows box come up, (see skrinsut) choose the default setting with pressing ENTER, When the color depth settings come up select 16, (see skrinsut).

Finishing, press Ctrl+Alt+F7, then press Ctrl+Alt+Backspace. Wait for a while when Ubuntu reset and comeback with graphical user interface you want..

Note: debian-installer/framebuffer=false - will tell the installer NOT to install the framebuffer..
Takecover from ubuntuguide.org + google + experience