Unetbootin liveusb LMDE wont start X

[confused.brit]

I wonder if anyone can help me here:

I have a pendrive with LMDE liveusb made using Unetbootin. It boots up but it will not boot into X, i just get a black screen.

When i switch to a terminal with Alt-F1, and Startx i get a complaint it cant find any screens

The GPU is the dreaded Intel 915GM (yes this is a laptop)

Any tips on getting it working?

[confused.brit]

More info: There is no X as described above in compatibility mode.

If I use normal mode, I get a desktop for a brief interval then it freezes and will not respond until I power off. Not even to Magic Sysreq keys

[hamamelis]

I had a similar problem with LMDE using UNetbootin.
I found that MultiBoot worked: http://liveusb.info/dotclear/

For more details see: viewtopic.php?f=141&t=61388&p=352672#p352672