For the video problem patch 109401 add support for many recent graphic adapters like Nvidia Gforce family, Ati Radeon, Matrox G400, etc, for cards not supported by Sun native drivers you can use the Solaris Xfree86 Drivers Porting Kit, so if is supported by Xfre86 is supported by Solaris x86, get your kit at:
For ACPI problem, in some motherboards, ACPI probe method used by Solaris x86 installation may cause hangs, you can try forcibly disabling acpi, get a DCA boot floppy then edit "/solaris/bootenv.rc" on the floppy and add the line:
setprop acpi-user-options '0x2'
You can get your DCA boot diskette at:
For sound support, if you card is not supported, you can use the open sound drivers from 4Front technologies, you can get your trial version for Solaris x86 at:
The network problem is the worst, Solaris has excellent support for just about any intel network card, the Realtek 8139 is also supported if you download the driver for Solaris x86 from Realtek web site, for laptops with a Mini PCI capable you can buy a Intel, the 3com 3C589C or 3C589D pcmia is also supported but this is a 10Mbits one and in some cases you will need to use a patch from Xig, you can get the patch at:
Hope it helps,
Regards,
Carlos Almeida,