Problem installing DF 3.3

[Filippo Moretti]

After downloading und unzipping an image file of DFly-3.3.0 I cannot complete 
the installation due to the following error:
panic: isa_dmstart:bad bounce buffer
cpuid=0
no kernel stack address
Debugger ("panic")
CPU= stopping CPUS:0x0000002
stopped
stopped at Debugger+0x3c: movb $ 0,m_Debugger.4852
db>
I tried a few snapshot but all fail in the same manner
sincerely
Filippo