默认安装的Solaris 9 x86是不支持鼠标滚轮的，这点比较痛苦。
在CU上找到苏哲的转贴文章，推荐了一款软件
软件：http://www.tools.de/solaris/ps2wheel/
PS/2 Wheelmouse driver for Solaris x86
Download the Solaris x86 PS/2 Wheelmouse driver (21KByte; 2004-7-29). The driver works with Solaris 8 x86, Solaris 9 x86 and Solaris 10(beta) x86 and is intended to be used with the Solaris X11 server Xsun.
uncompress and install the package as user root bunzip2 TOOLSps2w-1.6-i386.pkg.bz2
pkgadd -d TOOLSps2w-1.6-i386.pkg
Configure the mouse with the command kdmconfig. Select the "Built-in PS/2 Wheelmouse" entry with the appropriate mouse protocol in the pointing device submenu.